From dd099b3ebf3e0ad87c417034c8eedd55141765b7 Mon Sep 17 00:00:00 2001 From: 404rorre <404rorre.edoc@gmail.com> Date: Sat, 14 Dec 2024 14:22:50 +0100 Subject: [PATCH 1/3] added scraper.ipynb for core engine --- core_en.ipynb | 615 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 615 insertions(+) create mode 100644 core_en.ipynb diff --git a/core_en.ipynb b/core_en.ipynb new file mode 100644 index 0000000..e0b6a5c --- /dev/null +++ b/core_en.ipynb @@ -0,0 +1,615 @@ +{ + "cells": [ + { + "cell_type": "code", + "execution_count": 13, + "id": "3663bd02", + "metadata": {}, + "outputs": [], + "source": [ + "#!pip install -r ../requirements.txt\n", + "#!pip install selenium\n", + "#!pip install beautifulsoup4\n", + "#!pip install lxml\n", + "#!C:\\ProgramData\\anaconda3\\python.exe -m pip install seleniumbase" + ] + }, + { + "cell_type": "code", + "execution_count": 14, + "id": "a420a488", + "metadata": {}, + "outputs": [], + "source": [ + "\"\"\"\n", + "Scraping class for various scraping-related functions.\n", + "\n", + "Methods:\n", + " __init__: Initialize the Scraping object.\n", + " __del__: Destructor for the Scraping object.\n", + " encode_code: Encode code as base64.\n", + " decode_code: Decode base64-encoded code.\n", + " decode_picture: Decode base64-encoded picture.\n", + " get_result_meta: Get metadata for a given URL.\n", + " take_screenshot: Take a screenshot of the browser window.\n", + " get_real_url: Get the real URL after any redirects.\n", + "\n", + "\"\"\"\n", + "\n", + "import json\n", + "import base64\n", + "from bs4 import BeautifulSoup\n", + "\n", + "from urllib import request\n", + "from urllib.parse import urlsplit\n", + "from urllib.parse import urlparse\n", + "import urllib.parse\n", + "import socket\n", + "\n", + "import os\n", + "import inspect\n", + "\n", + "import uuid #used to generate random file names\n", + "\n", + "import time\n", + "\n", + "class Scraping:\n", + "\n", + " def __init__(self):\n", + " \"\"\"\n", + " Initialize the Scraping object.\n", + " \"\"\" \n", + " self = self\n", + "\n", + " def __del__(self):\n", + " \"\"\"\n", + " Destructor for the Scraping object.\n", + " \"\"\" \n", + " print('Helper object destroyed')\n", + "\n", + " def encode_code(self, code):\n", + " \"\"\"\n", + " Encode code as base64.\n", + "\n", + " Args:\n", + " code (str): Code to encode.\n", + "\n", + " Returns:\n", + " str: Base64-encoded code.\n", + " \"\"\" \n", + " code = code.encode('utf-8','ignore')\n", + " code = base64.b64encode(code)\n", + " return code\n", + "\n", + " def decode_code(self, value):\n", + " \"\"\"\n", + " Decode base64-encoded code.\n", + "\n", + " Args:\n", + " value (str): Base64-encoded code.\n", + "\n", + " Returns:\n", + " str: Decoded code.\n", + " \"\"\"\n", + "\n", + " try:\n", + " code_decoded = base64.b64decode(value)\n", + " code_decoded = BeautifulSoup(code_decoded, \"html.parser\")\n", + " code_decoded = str(code_decoded)\n", + " except Exception as e:\n", + " print(str(e))\n", + " code_decoded = \"decoding error\"\n", + " return code_decoded\n", + "\n", + "\n", + "\n", + " def decode_picture(self, value):\n", + " \"\"\"\n", + " Decode base64-encoded picture.\n", + "\n", + " Args:\n", + " value (str): Base64-encoded picture.\n", + "\n", + " Returns:\n", + " str: Decoded picture.\n", + " \"\"\" \n", + " picture = value.tobytes()\n", + " picture = picture.decode('ascii')\n", + " return picture\n", + "\n", + " def get_result_meta(self, url):\n", + " \"\"\"\n", + " Get metadata for a given URL.\n", + "\n", + " Args:\n", + " url (str): URL to get metadata for.\n", + "\n", + " Returns:\n", + " dict: Dictionary containing the metadata.\n", + " \"\"\" \n", + " meta = {}\n", + " ip = \"-1\"\n", + " main = url\n", + " #parse url to get hostname and socket\n", + " try:\n", + " parsed_uri = urlparse(url)\n", + " hostname = '{uri.netloc}'.format(uri=parsed_uri)\n", + " ip = socket.gethostbyname(hostname)\n", + " except Exception as e:\n", + " print(str(e))\n", + " ip = \"-1\"\n", + "\n", + " try:\n", + " main = '{0.scheme}://{0.netloc}/'.format(urlsplit(url))\n", + " except Exception as e:\n", + " print(str(e))\n", + " main = url\n", + "\n", + " #write to meta dictionary\n", + " meta = {\"ip\":ip, \"main\":main}\n", + "\n", + " return meta\n", + "\n", + "\n", + "\n", + " def take_screenshot(self, driver):\n", + " \"\"\"\n", + " Take a screenshot of the browser window.\n", + "\n", + " Args:\n", + " driver: WebDriver instance.\n", + "\n", + " Returns:\n", + " str: Base64-encoded screenshot image.\n", + " \"\"\"\n", + " #function to encode file content to base64\n", + " def encode_file_base64(self, file):\n", + " f = open(file, 'rb')\n", + " code = f.read()\n", + " code = base64.b64encode(code)\n", + " f.close()\n", + " return code\n", + "\n", + " current_path = os.path.abspath(os.getcwd())\n", + "\n", + " #iniatilize constant variables\n", + "\n", + " #iniatilize the directories for the extension and for the folder for temporary downlods of files\n", + " if os.name == \"nt\":\n", + " screenshot_folder = current_path+\"\\\\tmp\\\\\"\n", + "\n", + "\n", + " else:\n", + " screenshot_folder = current_path+\"//tmp//\"\n", + "\n", + " screenshot_file = screenshot_folder+str(uuid.uuid1())+\".png\"\n", + "\n", + " time.sleep(2)\n", + "\n", + " driver.maximize_window() #maximize browser window for screenshot\n", + " driver.save_screenshot(screenshot_file)\n", + "\n", + " # #open screenshot and save as base64\n", + " screenshot = encode_file_base64(self, screenshot_file)\n", + "\n", + " os.remove(screenshot_file)\n", + "\n", + " return screenshot #return base64 code of image\n", + "\n", + " def get_real_url(url, driver):\n", + " \"\"\"\n", + " Get the real URL after any redirects.\n", + "\n", + " Args:\n", + " url (str): URL to get the real URL for.\n", + " driver: WebDriver instance.\n", + "\n", + " Returns:\n", + " str: Real URL after any redirects.\n", + " \"\"\" \n", + " try:\n", + " driver.get(url)\n", + " time.sleep(4)\n", + " current_url = driver.current_url #read real url (redirected url)\n", + " driver.quit()\n", + " return current_url\n", + " except Exception as e:\n", + " print(str(e))\n", + " pass" + ] + }, + { + "cell_type": "code", + "execution_count": 15, + "id": "1dcc3367", + "metadata": {}, + "outputs": [], + "source": [ + "\"\"\"\n", + "This template provides a framework for creating a custom scraper for the RAT software. This scraper is designed to work with search services that offer search forms. For other types of search systems, modifications to this template may be necessary. Selenium is utilized as the primary tool for web scraping.\n", + "\n", + "The scraper should be capable of returning the following fields:\n", + "- `result_title`: The title of the search result snippet.\n", + "- `result_description`: The description in the snippet of the result.\n", + "- `result_url`: The URL of the search result.\n", + "- `serp_code`: The HTML source code of the search result page, useful for further analysis.\n", + "- `serp_bin`: A screenshot of the search result page, if needed for additional analysis.\n", + "- `page`: The page number of search results, useful for paginated results or scrolling-based systems.\n", + "\n", + "A typical scraper consists of the following functions:\n", + "- `run(query, limit, scraping, headless)`: The main function to execute the scraper with the given parameters.\n", + "- `get_search_results(driver, page)`: A helper function to retrieve search results from the given page.\n", + "- `check_captcha(driver)`: A helper function to check for CAPTCHA or similar blocks and handle them appropriately.\n", + "\n", + "The variables and functionality described here can be adapted according to the specific search engine being scraped.\n", + "\n", + "The search engine in this template is Ecosia. Change the parameters according to the search engine you want to scrape.\n", + "\"\"\"\n", + "\n", + "#library with functions for web scraping\n", + "\n", + "#import external libraries\n", + "from selenium import webdriver\n", + "from selenium.webdriver.chrome.options import Options\n", + "from selenium.webdriver.chrome.service import Service\n", + "\n", + "from selenium.webdriver.common.by import By\n", + "from selenium.webdriver.common.keys import Keys\n", + "\n", + "from selenium.common.exceptions import TimeoutException #used to interrupt loding of websites and needed as workaround to download files with selenium\n", + "from selenium.webdriver.common.action_chains import ActionChains #used to simulate pressing of a key\n", + "\n", + "from selenium.webdriver.support.ui import Select\n", + "\n", + "\n", + "import uuid #used to generate random file names\n", + "\n", + "import time #used to do timeout breaks\n", + "\n", + "import os #used for file management\n", + "\n", + "#base64 encoding to convert the code codes of webpages\n", + "import base64\n", + "\n", + "#BeautifulSoup is necessary to beautify the code coded after it has been decoded (especially useful to prevent character errors)\n", + "from bs4 import BeautifulSoup\n", + "from lxml import html\n", + "\n", + "import random\n", + "import inspect\n", + "import re\n", + "\n", + "import os\n", + "import inspect\n", + "\n", + "currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))\n", + "parentdir = os.path.dirname(currentdir)\n", + "parentdir = os.path.dirname(parentdir)\n", + "\n", + "ext_path = parentdir+\"/i_care_about_cookies_unpacked\"\n", + "\n", + "from seleniumbase import Driver\n", + "\n", + "def run(query, limit, scraping, headless):\n", + " \"\"\"\n", + " Run the scraper.\n", + "\n", + " Args:\n", + " query (str): The search query.\n", + " limit (int): The maximum number of search results to retrieve.\n", + " scraping: The Scraping object.\n", + " headless (bool): If True, runs the browser in headless mode (without GUI).\n", + "\n", + " Returns:\n", + " list: List of search results.\n", + " \"\"\"\n", + " try:\n", + " # URL and selectors for the search engine\n", + " search_url = \"https://core.ac.uk/\" #URL for the search engine\n", + " search_box = \"styles-control-12Pze\" #Selector for the search box\n", + " captcha = \"g-recaptcha\" #Selector for CAPTCHA in the page source\n", + " \n", + " # Initialize variables\n", + " results_number = 0 #Initialize number of search results\n", + " page = -1 #Initialize SERP page number\n", + " search_results = [] #Initialize list of search results\n", + " \n", + " # Custom function to scrape search results\n", + " def get_search_results(driver, page):\n", + " \"\"\"\n", + " Retrieve search results from the current page.\n", + "\n", + " Args:\n", + " driver: Selenium WebDriver instance.\n", + " page (int): Current SERP page.\n", + "\n", + " Returns:\n", + " list: List of search results from the current page.\n", + " \"\"\"\n", + " temp_search_results = []\n", + "\n", + " # Get page source and encode it\n", + " source = driver.page_source\n", + " serp_code = scraping.encode_code(source)\n", + " serp_bin = scraping.take_screenshot(driver)\n", + "\n", + " # Parse the page source with BeautifulSoup\n", + " soup = BeautifulSoup(source, features=\"lxml\")\n", + "\n", + " # Extract search results using CSS selectors\n", + " for result in soup.find_all(\"div\", class_=[\"styles_search-results__2AZDM\"]):\n", + " result_title = \"N/A\" #Initialize result title\n", + " result_description = \"N/A\" #Initialize result description\n", + " result_url = \"N/A\" #Initialize result URL\n", + "\n", + " # Get Title\n", + " try:\n", + " title_elem = result.find(\"h3\", class_=[\"styles-title-1k6Ib\"])\n", + " if title_elem:\n", + " result_title = title_elem.text.strip()\n", + " except:\n", + " pass\n", + " \n", + " # Get Description\n", + " try:\n", + " description_elem = result.find(\"div\", class_=[\"styles-content-35LN7\"])\n", + " if description_elem:\n", + " result_description = description_elem.text.strip()\n", + " except:\n", + " pass\n", + " \n", + " # Get original URL when redirected (Core has its own site. Need conclusion if internal redirection to paper needed.)\n", + " try:\n", + " url_elem = result.find(\"a\")\n", + " if url_elem:\n", + " url = url_elem.attrs['href']\n", + " if \"bing.\" in url:\n", + " url = scraping.get_real_url(url)\n", + " result_url = url\n", + " except:\n", + " pass\n", + "\n", + " if result_url != \"N/A\":\n", + " temp_search_results.append([result_title, result_description, result_url, serp_code, serp_bin, page])\n", + "\n", + " return temp_search_results\n", + "\n", + " # Custom function to check if CAPTCHA is present\n", + " def check_captcha(driver):\n", + " \"\"\"\n", + " Check if CAPTCHA is present on the page.\n", + "\n", + " Args:\n", + " driver: Selenium WebDriver instance.\n", + "\n", + " Returns:\n", + " bool: True if CAPTCHA is present, False otherwise.\n", + " \"\"\"\n", + " source = driver.page_source\n", + " return captcha in source\n", + " \n", + " def remove_duplicates(search_results):\n", + " \"\"\"\n", + " Removes duplicate search results based on the URL.\n", + "\n", + " Args:\n", + " search_results (list): List of search results to deduplicate.\n", + "\n", + " Returns:\n", + " list: List of search results with duplicates removed.\n", + " \"\"\"\n", + " seen_urls = set()\n", + " unique_results = []\n", + "\n", + " # Append only unique results\n", + " for result in search_results:\n", + " url = result[2]\n", + " if url not in seen_urls:\n", + " seen_urls.add(url)\n", + " unique_results.append(result)\n", + "\n", + " return unique_results \n", + "\n", + " # Initialize Selenium driver\n", + " driver = Driver(\n", + " browser=\"chrome\",\n", + " wire=True,\n", + " uc=True,\n", + " headless2=headless,\n", + " incognito=False,\n", + " agent=\"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36\",\n", + " do_not_track=True,\n", + " undetectable=True,\n", + " extension_dir=ext_path,\n", + " locale_code=\"de\"\n", + " )\n", + "\n", + " driver.maximize_window()\n", + " driver.set_page_load_timeout(20)\n", + " driver.implicitly_wait(30)\n", + " driver.get(search_url)\n", + " time.sleep(random.randint(2, 5))\n", + "\n", + " # Start scraping if no CAPTCHA\n", + " if not check_captcha(driver):\n", + " search = driver.find_element(By.CLASS_NAME, search_box) #Find search box\n", + " search.send_keys(query) #Enter search query\n", + " search.send_keys(Keys.RETURN) #Submit search\n", + " time.sleep(random.randint(2, 5)) #Wait for Results\n", + "\n", + " search_results = get_search_results(driver, page)\n", + " results_number = len(search_results)\n", + " continue_scraping = True #Initialize scraping\n", + "\n", + " # Loop through pages until limit is reached or CAPTCHA appears\n", + " while results_number < limit and continue_scraping:\n", + " if not check_captcha(driver):\n", + " time.sleep(random.randint(2, 5))\n", + " page += 1\n", + " try:\n", + " #next_page_url = f\"https://www.ecosia.org/search?method=index&q={query}&p={page}\" #Next page URL\n", + " next_page_url = f\"https://core.ac.uk/search/?q={query}&page={page}\" #Next page URL\n", + " print(next_page_url)\n", + " driver.get(next_page_url)\n", + " extract_search_results = get_search_results(driver, page)\n", + " print(f\"Results extracted: {len(extract_search_results)}\")\n", + "\n", + " if extract_search_results:\n", + " print(\"Appending results.\")\n", + " search_results += extract_search_results\n", + " search_results = remove_duplicates(search_results)\n", + " results_number = len(search_results)\n", + " else:\n", + " continue_scraping = False\n", + " search_results = -1\n", + " except Exception as e:\n", + " print(f\"Failed to get next page: {e}\")\n", + " continue_scraping = False\n", + " else:\n", + " continue_scraping = False\n", + " search_results = -1\n", + "\n", + " driver.quit()\n", + " return search_results\n", + " else:\n", + " search_results = -1\n", + " driver.quit()\n", + " return search_results\n", + "\n", + " except Exception as e:\n", + " print(f\"Exception occurred: {e}\")\n", + " try:\n", + " driver.quit()\n", + " except:\n", + " pass\n", + " return -1" + ] + }, + { + "cell_type": "code", + "execution_count": 16, + "id": "27cd7e40", + "metadata": {}, + "outputs": [], + "source": [ + "#function to test the scraper. it shows all scraped details or an error message, if it fails\n", + "\n", + "def test_scraper(query, limit, scraper, headless):\n", + " search_results = run(query, limit, scraper, headless)\n", + "\n", + " i = 0\n", + " if search_results != -1:\n", + " for sr in search_results:\n", + " i+=1\n", + " print(i)\n", + " print(sr[0])\n", + " print(sr[1])\n", + " print(sr[2])\n", + " else:\n", + " print(\"Scraping failed\")" + ] + }, + { + "cell_type": "code", + "execution_count": 19, + "id": "12bc2ba6", + "metadata": {}, + "outputs": [], + "source": [ + "#initialise the scraper: Change the parameters for testing your scraper\n", + "scraper = Scraping() #initialize the scraping object\n", + "\n", + "query = \"test\" #search query\n", + "limit = 10 #max_number of results (the scraper normally adds some more pages since not all search engines deliver a certain number of search results on every SERP)\n", + "\n" + ] + }, + { + "cell_type": "code", + "execution_count": 20, + "id": "a0389e24", + "metadata": {}, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Helper object destroyed\n", + "1\n", + "Test 2214: Kubota M7-132\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879768/?t=176ae88baa8443822a1eef97e30f4565-124879768\n", + "2\n", + "Tractor Test 1918: New Holland TT 50A\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/77694137/?t=176ae88baa8443822a1eef97e30f4565-77694137\n", + "3\n", + "Test 1950 John Deere 6130D Diesel\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879673/?t=176ae88baa8443822a1eef97e30f4565-124879673\n", + "4\n", + "Test 1957: John Deere 5075E Diesel\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879676/?t=176ae88baa8443822a1eef97e30f4565-124879676\n", + "5\n", + "Test 2077: John Deere 6115M\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879730/?t=176ae88baa8443822a1eef97e30f4565-124879730\n", + "6\n", + "Test 2037: John Deere 5100M\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124880698/?t=176ae88baa8443822a1eef97e30f4565-124880698\n", + "7\n", + "Tractor Test 2173: John Deere 9570RX Diesel\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/77694162/?t=176ae88baa8443822a1eef97e30f4565-77694162\n", + "8\n", + "Test 1927: John Deere 9630T Diesel\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879656/?t=176ae88baa8443822a1eef97e30f4565-124879656\n", + "9\n", + "Test 2074: John Deere 5085E\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879748/?t=176ae88baa8443822a1eef97e30f4565-124879748\n", + "10\n", + "Test 2092: Case IH Steiger 370\n", + "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", + "https://core.ac.uk/works/124879733/?t=176ae88baa8443822a1eef97e30f4565-124879733\n" + ] + } + ], + "source": [ + "test_scraper(query, limit, scraper, headless=True)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "d263056d", + "metadata": {}, + "outputs": [], + "source": [] + } + ], + "metadata": { + "kernelspec": { + "display_name": "Python 3 (ipykernel)", + "language": "python", + "name": "python3" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython3", + "version": "3.12.3" + } + }, + "nbformat": 4, + "nbformat_minor": 5 +} From a74379590eb5ec758291cfdba524c4c5d8d8b1b3 Mon Sep 17 00:00:00 2001 From: 404rorre <404rorre.edoc@gmail.com> Date: Sun, 15 Dec 2024 12:13:16 +0100 Subject: [PATCH 2/3] added core_en as py script --- scrapers/core_en.py | 221 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 221 insertions(+) create mode 100644 scrapers/core_en.py diff --git a/scrapers/core_en.py b/scrapers/core_en.py new file mode 100644 index 0000000..d65ca08 --- /dev/null +++ b/scrapers/core_en.py @@ -0,0 +1,221 @@ +""" +This template provides a framework for creating a custom scraper for the RAT software. This scraper is designed to work with search services that offer search forms. For other types of search systems, modifications to this template may be necessary. Selenium is utilized as the primary tool for web scraping. + +The scraper should be capable of returning the following fields: +- `result_title`: The title of the search result snippet. +- `result_description`: The description in the snippet of the result. +- `result_url`: The URL of the search result. +- `serp_code`: The HTML source code of the search result page, useful for further analysis. +- `serp_bin`: A screenshot of the search result page, if needed for additional analysis. +- `page`: The page number of search results, useful for paginated results or scrolling-based systems. + +A typical scraper consists of the following functions: +- `run(query, limit, scraping, headless)`: The main function to execute the scraper with the given parameters. +- `get_search_results(driver, page)`: A helper function to retrieve search results from the given page. +- `check_captcha(driver)`: A helper function to check for CAPTCHA or similar blocks and handle them appropriately. + +The variables and functionality described here can be adapted according to the specific search engine being scraped. + +The search engine in this template is Ecosia. Change the parameters according to the search engine you want to scrape. +""" + +from scrapers.requirements import * +from selenium.webdriver.common.by import By +from selenium.webdriver.common.keys import Keys +from bs4 import BeautifulSoup +import time +import random + +def run(query, limit, scraping, headless): + """ + Run the scraper. + + Args: + query (str): The search query. + limit (int): The maximum number of search results to retrieve. + scraping: The Scraping object. + headless (bool): If True, runs the browser in headless mode (without GUI). + + Returns: + list: List of search results. + """ + try: + # URL and selectors for the search engine + search_url = "https://core.ac.uk/" #URL for the search engine + search_box = "styles-control-12Pze" #Selector for the search box + captcha = "g-recaptcha" #Selector for CAPTCHA in the page source + + # Initialize variables + results_number = 0 #Initialize number of search results + page = -1 #Initialize SERP page number + search_results = [] #Initialize list of search results + + # Custom function to scrape search results + def get_search_results(driver, page): + """ + Retrieve search results from the current page. + + Args: + driver: Selenium WebDriver instance. + page (int): Current SERP page. + + Returns: + list: List of search results from the current page. + """ + temp_search_results = [] + + # Get page source and encode it + source = driver.page_source + serp_code = scraping.encode_code(source) + serp_bin = scraping.take_screenshot(driver) + + # Parse the page source with BeautifulSoup + soup = BeautifulSoup(source, features="lxml") + + # Extract search results using CSS selectors + for result in soup.find_all("div", class_=["styles_search-results__2AZDM"]): + result_title = "N/A" #Initialize result title + result_description = "N/A" #Initialize result description + result_url = "N/A" #Initialize result URL + + # Get Title + try: + title_elem = result.find("h3", class_=["styles-title-1k6Ib"]) + if title_elem: + result_title = title_elem.text.strip() + except: + pass + + # Get Description + try: + description_elem = result.find("div", class_=["styles-content-35LN7"]) + if description_elem: + result_description = description_elem.text.strip() + except: + pass + + # Get original URL when redirected (Core has its own site. Need conclusion if internal redirection to paper needed.) + try: + url_elem = result.find("a") + if url_elem: + url = url_elem.attrs['href'] + if "bing." in url: + url = scraping.get_real_url(url) + result_url = url + except: + pass + + if result_url != "N/A": + temp_search_results.append([result_title, result_description, result_url, serp_code, serp_bin, page]) + + return temp_search_results + + # Custom function to check if CAPTCHA is present + def check_captcha(driver): + """ + Check if CAPTCHA is present on the page. + + Args: + driver: Selenium WebDriver instance. + + Returns: + bool: True if CAPTCHA is present, False otherwise. + """ + source = driver.page_source + return captcha in source + + def remove_duplicates(search_results): + """ + Removes duplicate search results based on the URL. + + Args: + search_results (list): List of search results to deduplicate. + + Returns: + list: List of search results with duplicates removed. + """ + seen_urls = set() + unique_results = [] + + # Append only unique results + for result in search_results: + url = result[2] + if url not in seen_urls: + seen_urls.add(url) + unique_results.append(result) + + return unique_results + + # Initialize Selenium driver + driver = Driver( + browser="chrome", + wire=True, + uc=True, + headless2=headless, + incognito=False, + agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36", + do_not_track=True, + undetectable=True, + extension_dir=ext_path, + locale_code="de" + ) + + driver.maximize_window() + driver.set_page_load_timeout(20) + driver.implicitly_wait(30) + driver.get(search_url) + time.sleep(random.randint(2, 5)) + + # Start scraping if no CAPTCHA + if not check_captcha(driver): + search = driver.find_element(By.CLASS_NAME, search_box) #Find search box + search.send_keys(query) #Enter search query + search.send_keys(Keys.RETURN) #Submit search + time.sleep(random.randint(2, 5)) #Wait for Results + + search_results = get_search_results(driver, page) + results_number = len(search_results) + continue_scraping = True #Initialize scraping + + # Loop through pages until limit is reached or CAPTCHA appears + while results_number < limit and continue_scraping: + if not check_captcha(driver): + time.sleep(random.randint(2, 5)) + page += 1 + try: + #next_page_url = f"https://www.ecosia.org/search?method=index&q={query}&p={page}" #Next page URL + next_page_url = f"https://core.ac.uk/search/?q={query}&page={page}" #Next page URL + print(next_page_url) + driver.get(next_page_url) + extract_search_results = get_search_results(driver, page) + print(f"Results extracted: {len(extract_search_results)}") + + if extract_search_results: + print("Appending results.") + search_results += extract_search_results + search_results = remove_duplicates(search_results) + results_number = len(search_results) + else: + continue_scraping = False + search_results = -1 + except Exception as e: + print(f"Failed to get next page: {e}") + continue_scraping = False + else: + continue_scraping = False + search_results = -1 + + driver.quit() + return search_results + else: + search_results = -1 + driver.quit() + return search_results + + except Exception as e: + print(f"Exception occurred: {e}") + try: + driver.quit() + except: + pass + return -1 \ No newline at end of file From 9d7b57d9ed327fc3a35785ee051e180977008a1f Mon Sep 17 00:00:00 2001 From: 404rorre <404rorre.edoc@gmail.com> Date: Sun, 15 Dec 2024 13:19:04 +0100 Subject: [PATCH 3/3] removed core_en notebook --- core_en.ipynb | 615 -------------------------------------------------- 1 file changed, 615 deletions(-) delete mode 100644 core_en.ipynb diff --git a/core_en.ipynb b/core_en.ipynb deleted file mode 100644 index e0b6a5c..0000000 --- a/core_en.ipynb +++ /dev/null @@ -1,615 +0,0 @@ -{ - "cells": [ - { - "cell_type": "code", - "execution_count": 13, - "id": "3663bd02", - "metadata": {}, - "outputs": [], - "source": [ - "#!pip install -r ../requirements.txt\n", - "#!pip install selenium\n", - "#!pip install beautifulsoup4\n", - "#!pip install lxml\n", - "#!C:\\ProgramData\\anaconda3\\python.exe -m pip install seleniumbase" - ] - }, - { - "cell_type": "code", - "execution_count": 14, - "id": "a420a488", - "metadata": {}, - "outputs": [], - "source": [ - "\"\"\"\n", - "Scraping class for various scraping-related functions.\n", - "\n", - "Methods:\n", - " __init__: Initialize the Scraping object.\n", - " __del__: Destructor for the Scraping object.\n", - " encode_code: Encode code as base64.\n", - " decode_code: Decode base64-encoded code.\n", - " decode_picture: Decode base64-encoded picture.\n", - " get_result_meta: Get metadata for a given URL.\n", - " take_screenshot: Take a screenshot of the browser window.\n", - " get_real_url: Get the real URL after any redirects.\n", - "\n", - "\"\"\"\n", - "\n", - "import json\n", - "import base64\n", - "from bs4 import BeautifulSoup\n", - "\n", - "from urllib import request\n", - "from urllib.parse import urlsplit\n", - "from urllib.parse import urlparse\n", - "import urllib.parse\n", - "import socket\n", - "\n", - "import os\n", - "import inspect\n", - "\n", - "import uuid #used to generate random file names\n", - "\n", - "import time\n", - "\n", - "class Scraping:\n", - "\n", - " def __init__(self):\n", - " \"\"\"\n", - " Initialize the Scraping object.\n", - " \"\"\" \n", - " self = self\n", - "\n", - " def __del__(self):\n", - " \"\"\"\n", - " Destructor for the Scraping object.\n", - " \"\"\" \n", - " print('Helper object destroyed')\n", - "\n", - " def encode_code(self, code):\n", - " \"\"\"\n", - " Encode code as base64.\n", - "\n", - " Args:\n", - " code (str): Code to encode.\n", - "\n", - " Returns:\n", - " str: Base64-encoded code.\n", - " \"\"\" \n", - " code = code.encode('utf-8','ignore')\n", - " code = base64.b64encode(code)\n", - " return code\n", - "\n", - " def decode_code(self, value):\n", - " \"\"\"\n", - " Decode base64-encoded code.\n", - "\n", - " Args:\n", - " value (str): Base64-encoded code.\n", - "\n", - " Returns:\n", - " str: Decoded code.\n", - " \"\"\"\n", - "\n", - " try:\n", - " code_decoded = base64.b64decode(value)\n", - " code_decoded = BeautifulSoup(code_decoded, \"html.parser\")\n", - " code_decoded = str(code_decoded)\n", - " except Exception as e:\n", - " print(str(e))\n", - " code_decoded = \"decoding error\"\n", - " return code_decoded\n", - "\n", - "\n", - "\n", - " def decode_picture(self, value):\n", - " \"\"\"\n", - " Decode base64-encoded picture.\n", - "\n", - " Args:\n", - " value (str): Base64-encoded picture.\n", - "\n", - " Returns:\n", - " str: Decoded picture.\n", - " \"\"\" \n", - " picture = value.tobytes()\n", - " picture = picture.decode('ascii')\n", - " return picture\n", - "\n", - " def get_result_meta(self, url):\n", - " \"\"\"\n", - " Get metadata for a given URL.\n", - "\n", - " Args:\n", - " url (str): URL to get metadata for.\n", - "\n", - " Returns:\n", - " dict: Dictionary containing the metadata.\n", - " \"\"\" \n", - " meta = {}\n", - " ip = \"-1\"\n", - " main = url\n", - " #parse url to get hostname and socket\n", - " try:\n", - " parsed_uri = urlparse(url)\n", - " hostname = '{uri.netloc}'.format(uri=parsed_uri)\n", - " ip = socket.gethostbyname(hostname)\n", - " except Exception as e:\n", - " print(str(e))\n", - " ip = \"-1\"\n", - "\n", - " try:\n", - " main = '{0.scheme}://{0.netloc}/'.format(urlsplit(url))\n", - " except Exception as e:\n", - " print(str(e))\n", - " main = url\n", - "\n", - " #write to meta dictionary\n", - " meta = {\"ip\":ip, \"main\":main}\n", - "\n", - " return meta\n", - "\n", - "\n", - "\n", - " def take_screenshot(self, driver):\n", - " \"\"\"\n", - " Take a screenshot of the browser window.\n", - "\n", - " Args:\n", - " driver: WebDriver instance.\n", - "\n", - " Returns:\n", - " str: Base64-encoded screenshot image.\n", - " \"\"\"\n", - " #function to encode file content to base64\n", - " def encode_file_base64(self, file):\n", - " f = open(file, 'rb')\n", - " code = f.read()\n", - " code = base64.b64encode(code)\n", - " f.close()\n", - " return code\n", - "\n", - " current_path = os.path.abspath(os.getcwd())\n", - "\n", - " #iniatilize constant variables\n", - "\n", - " #iniatilize the directories for the extension and for the folder for temporary downlods of files\n", - " if os.name == \"nt\":\n", - " screenshot_folder = current_path+\"\\\\tmp\\\\\"\n", - "\n", - "\n", - " else:\n", - " screenshot_folder = current_path+\"//tmp//\"\n", - "\n", - " screenshot_file = screenshot_folder+str(uuid.uuid1())+\".png\"\n", - "\n", - " time.sleep(2)\n", - "\n", - " driver.maximize_window() #maximize browser window for screenshot\n", - " driver.save_screenshot(screenshot_file)\n", - "\n", - " # #open screenshot and save as base64\n", - " screenshot = encode_file_base64(self, screenshot_file)\n", - "\n", - " os.remove(screenshot_file)\n", - "\n", - " return screenshot #return base64 code of image\n", - "\n", - " def get_real_url(url, driver):\n", - " \"\"\"\n", - " Get the real URL after any redirects.\n", - "\n", - " Args:\n", - " url (str): URL to get the real URL for.\n", - " driver: WebDriver instance.\n", - "\n", - " Returns:\n", - " str: Real URL after any redirects.\n", - " \"\"\" \n", - " try:\n", - " driver.get(url)\n", - " time.sleep(4)\n", - " current_url = driver.current_url #read real url (redirected url)\n", - " driver.quit()\n", - " return current_url\n", - " except Exception as e:\n", - " print(str(e))\n", - " pass" - ] - }, - { - "cell_type": "code", - "execution_count": 15, - "id": "1dcc3367", - "metadata": {}, - "outputs": [], - "source": [ - "\"\"\"\n", - "This template provides a framework for creating a custom scraper for the RAT software. This scraper is designed to work with search services that offer search forms. For other types of search systems, modifications to this template may be necessary. Selenium is utilized as the primary tool for web scraping.\n", - "\n", - "The scraper should be capable of returning the following fields:\n", - "- `result_title`: The title of the search result snippet.\n", - "- `result_description`: The description in the snippet of the result.\n", - "- `result_url`: The URL of the search result.\n", - "- `serp_code`: The HTML source code of the search result page, useful for further analysis.\n", - "- `serp_bin`: A screenshot of the search result page, if needed for additional analysis.\n", - "- `page`: The page number of search results, useful for paginated results or scrolling-based systems.\n", - "\n", - "A typical scraper consists of the following functions:\n", - "- `run(query, limit, scraping, headless)`: The main function to execute the scraper with the given parameters.\n", - "- `get_search_results(driver, page)`: A helper function to retrieve search results from the given page.\n", - "- `check_captcha(driver)`: A helper function to check for CAPTCHA or similar blocks and handle them appropriately.\n", - "\n", - "The variables and functionality described here can be adapted according to the specific search engine being scraped.\n", - "\n", - "The search engine in this template is Ecosia. Change the parameters according to the search engine you want to scrape.\n", - "\"\"\"\n", - "\n", - "#library with functions for web scraping\n", - "\n", - "#import external libraries\n", - "from selenium import webdriver\n", - "from selenium.webdriver.chrome.options import Options\n", - "from selenium.webdriver.chrome.service import Service\n", - "\n", - "from selenium.webdriver.common.by import By\n", - "from selenium.webdriver.common.keys import Keys\n", - "\n", - "from selenium.common.exceptions import TimeoutException #used to interrupt loding of websites and needed as workaround to download files with selenium\n", - "from selenium.webdriver.common.action_chains import ActionChains #used to simulate pressing of a key\n", - "\n", - "from selenium.webdriver.support.ui import Select\n", - "\n", - "\n", - "import uuid #used to generate random file names\n", - "\n", - "import time #used to do timeout breaks\n", - "\n", - "import os #used for file management\n", - "\n", - "#base64 encoding to convert the code codes of webpages\n", - "import base64\n", - "\n", - "#BeautifulSoup is necessary to beautify the code coded after it has been decoded (especially useful to prevent character errors)\n", - "from bs4 import BeautifulSoup\n", - "from lxml import html\n", - "\n", - "import random\n", - "import inspect\n", - "import re\n", - "\n", - "import os\n", - "import inspect\n", - "\n", - "currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))\n", - "parentdir = os.path.dirname(currentdir)\n", - "parentdir = os.path.dirname(parentdir)\n", - "\n", - "ext_path = parentdir+\"/i_care_about_cookies_unpacked\"\n", - "\n", - "from seleniumbase import Driver\n", - "\n", - "def run(query, limit, scraping, headless):\n", - " \"\"\"\n", - " Run the scraper.\n", - "\n", - " Args:\n", - " query (str): The search query.\n", - " limit (int): The maximum number of search results to retrieve.\n", - " scraping: The Scraping object.\n", - " headless (bool): If True, runs the browser in headless mode (without GUI).\n", - "\n", - " Returns:\n", - " list: List of search results.\n", - " \"\"\"\n", - " try:\n", - " # URL and selectors for the search engine\n", - " search_url = \"https://core.ac.uk/\" #URL for the search engine\n", - " search_box = \"styles-control-12Pze\" #Selector for the search box\n", - " captcha = \"g-recaptcha\" #Selector for CAPTCHA in the page source\n", - " \n", - " # Initialize variables\n", - " results_number = 0 #Initialize number of search results\n", - " page = -1 #Initialize SERP page number\n", - " search_results = [] #Initialize list of search results\n", - " \n", - " # Custom function to scrape search results\n", - " def get_search_results(driver, page):\n", - " \"\"\"\n", - " Retrieve search results from the current page.\n", - "\n", - " Args:\n", - " driver: Selenium WebDriver instance.\n", - " page (int): Current SERP page.\n", - "\n", - " Returns:\n", - " list: List of search results from the current page.\n", - " \"\"\"\n", - " temp_search_results = []\n", - "\n", - " # Get page source and encode it\n", - " source = driver.page_source\n", - " serp_code = scraping.encode_code(source)\n", - " serp_bin = scraping.take_screenshot(driver)\n", - "\n", - " # Parse the page source with BeautifulSoup\n", - " soup = BeautifulSoup(source, features=\"lxml\")\n", - "\n", - " # Extract search results using CSS selectors\n", - " for result in soup.find_all(\"div\", class_=[\"styles_search-results__2AZDM\"]):\n", - " result_title = \"N/A\" #Initialize result title\n", - " result_description = \"N/A\" #Initialize result description\n", - " result_url = \"N/A\" #Initialize result URL\n", - "\n", - " # Get Title\n", - " try:\n", - " title_elem = result.find(\"h3\", class_=[\"styles-title-1k6Ib\"])\n", - " if title_elem:\n", - " result_title = title_elem.text.strip()\n", - " except:\n", - " pass\n", - " \n", - " # Get Description\n", - " try:\n", - " description_elem = result.find(\"div\", class_=[\"styles-content-35LN7\"])\n", - " if description_elem:\n", - " result_description = description_elem.text.strip()\n", - " except:\n", - " pass\n", - " \n", - " # Get original URL when redirected (Core has its own site. Need conclusion if internal redirection to paper needed.)\n", - " try:\n", - " url_elem = result.find(\"a\")\n", - " if url_elem:\n", - " url = url_elem.attrs['href']\n", - " if \"bing.\" in url:\n", - " url = scraping.get_real_url(url)\n", - " result_url = url\n", - " except:\n", - " pass\n", - "\n", - " if result_url != \"N/A\":\n", - " temp_search_results.append([result_title, result_description, result_url, serp_code, serp_bin, page])\n", - "\n", - " return temp_search_results\n", - "\n", - " # Custom function to check if CAPTCHA is present\n", - " def check_captcha(driver):\n", - " \"\"\"\n", - " Check if CAPTCHA is present on the page.\n", - "\n", - " Args:\n", - " driver: Selenium WebDriver instance.\n", - "\n", - " Returns:\n", - " bool: True if CAPTCHA is present, False otherwise.\n", - " \"\"\"\n", - " source = driver.page_source\n", - " return captcha in source\n", - " \n", - " def remove_duplicates(search_results):\n", - " \"\"\"\n", - " Removes duplicate search results based on the URL.\n", - "\n", - " Args:\n", - " search_results (list): List of search results to deduplicate.\n", - "\n", - " Returns:\n", - " list: List of search results with duplicates removed.\n", - " \"\"\"\n", - " seen_urls = set()\n", - " unique_results = []\n", - "\n", - " # Append only unique results\n", - " for result in search_results:\n", - " url = result[2]\n", - " if url not in seen_urls:\n", - " seen_urls.add(url)\n", - " unique_results.append(result)\n", - "\n", - " return unique_results \n", - "\n", - " # Initialize Selenium driver\n", - " driver = Driver(\n", - " browser=\"chrome\",\n", - " wire=True,\n", - " uc=True,\n", - " headless2=headless,\n", - " incognito=False,\n", - " agent=\"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36\",\n", - " do_not_track=True,\n", - " undetectable=True,\n", - " extension_dir=ext_path,\n", - " locale_code=\"de\"\n", - " )\n", - "\n", - " driver.maximize_window()\n", - " driver.set_page_load_timeout(20)\n", - " driver.implicitly_wait(30)\n", - " driver.get(search_url)\n", - " time.sleep(random.randint(2, 5))\n", - "\n", - " # Start scraping if no CAPTCHA\n", - " if not check_captcha(driver):\n", - " search = driver.find_element(By.CLASS_NAME, search_box) #Find search box\n", - " search.send_keys(query) #Enter search query\n", - " search.send_keys(Keys.RETURN) #Submit search\n", - " time.sleep(random.randint(2, 5)) #Wait for Results\n", - "\n", - " search_results = get_search_results(driver, page)\n", - " results_number = len(search_results)\n", - " continue_scraping = True #Initialize scraping\n", - "\n", - " # Loop through pages until limit is reached or CAPTCHA appears\n", - " while results_number < limit and continue_scraping:\n", - " if not check_captcha(driver):\n", - " time.sleep(random.randint(2, 5))\n", - " page += 1\n", - " try:\n", - " #next_page_url = f\"https://www.ecosia.org/search?method=index&q={query}&p={page}\" #Next page URL\n", - " next_page_url = f\"https://core.ac.uk/search/?q={query}&page={page}\" #Next page URL\n", - " print(next_page_url)\n", - " driver.get(next_page_url)\n", - " extract_search_results = get_search_results(driver, page)\n", - " print(f\"Results extracted: {len(extract_search_results)}\")\n", - "\n", - " if extract_search_results:\n", - " print(\"Appending results.\")\n", - " search_results += extract_search_results\n", - " search_results = remove_duplicates(search_results)\n", - " results_number = len(search_results)\n", - " else:\n", - " continue_scraping = False\n", - " search_results = -1\n", - " except Exception as e:\n", - " print(f\"Failed to get next page: {e}\")\n", - " continue_scraping = False\n", - " else:\n", - " continue_scraping = False\n", - " search_results = -1\n", - "\n", - " driver.quit()\n", - " return search_results\n", - " else:\n", - " search_results = -1\n", - " driver.quit()\n", - " return search_results\n", - "\n", - " except Exception as e:\n", - " print(f\"Exception occurred: {e}\")\n", - " try:\n", - " driver.quit()\n", - " except:\n", - " pass\n", - " return -1" - ] - }, - { - "cell_type": "code", - "execution_count": 16, - "id": "27cd7e40", - "metadata": {}, - "outputs": [], - "source": [ - "#function to test the scraper. it shows all scraped details or an error message, if it fails\n", - "\n", - "def test_scraper(query, limit, scraper, headless):\n", - " search_results = run(query, limit, scraper, headless)\n", - "\n", - " i = 0\n", - " if search_results != -1:\n", - " for sr in search_results:\n", - " i+=1\n", - " print(i)\n", - " print(sr[0])\n", - " print(sr[1])\n", - " print(sr[2])\n", - " else:\n", - " print(\"Scraping failed\")" - ] - }, - { - "cell_type": "code", - "execution_count": 19, - "id": "12bc2ba6", - "metadata": {}, - "outputs": [], - "source": [ - "#initialise the scraper: Change the parameters for testing your scraper\n", - "scraper = Scraping() #initialize the scraping object\n", - "\n", - "query = \"test\" #search query\n", - "limit = 10 #max_number of results (the scraper normally adds some more pages since not all search engines deliver a certain number of search results on every SERP)\n", - "\n" - ] - }, - { - "cell_type": "code", - "execution_count": 20, - "id": "a0389e24", - "metadata": {}, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "Helper object destroyed\n", - "1\n", - "Test 2214: Kubota M7-132\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879768/?t=176ae88baa8443822a1eef97e30f4565-124879768\n", - "2\n", - "Tractor Test 1918: New Holland TT 50A\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/77694137/?t=176ae88baa8443822a1eef97e30f4565-77694137\n", - "3\n", - "Test 1950 John Deere 6130D Diesel\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879673/?t=176ae88baa8443822a1eef97e30f4565-124879673\n", - "4\n", - "Test 1957: John Deere 5075E Diesel\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879676/?t=176ae88baa8443822a1eef97e30f4565-124879676\n", - "5\n", - "Test 2077: John Deere 6115M\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879730/?t=176ae88baa8443822a1eef97e30f4565-124879730\n", - "6\n", - "Test 2037: John Deere 5100M\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124880698/?t=176ae88baa8443822a1eef97e30f4565-124880698\n", - "7\n", - "Tractor Test 2173: John Deere 9570RX Diesel\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/77694162/?t=176ae88baa8443822a1eef97e30f4565-77694162\n", - "8\n", - "Test 1927: John Deere 9630T Diesel\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879656/?t=176ae88baa8443822a1eef97e30f4565-124879656\n", - "9\n", - "Test 2074: John Deere 5085E\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879748/?t=176ae88baa8443822a1eef97e30f4565-124879748\n", - "10\n", - "Test 2092: Case IH Steiger 370\n", - "ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of the tests in this booklet, and available test reports is to provide users with data for comparisons of performance among tractor models. General Tractors are tested at the University of Nebraska according to test procedures of the OECD (Organization of Economic Cooperation and Development), the SAE (Society of Automotive Engineers) International and the ASABE (American Society of Agricultural and Biological Engineers). The three codes are technically equivalent, but do differ slightly. For the past 10 years, the majority of tests have been performed according to the OECD codes. The manufacturer selects the tractor to be tested from its production line, provides the specifications, and certifies that the tractor is a stock model. Each tractor is equipped with the common energy consuming accessories (power steering, PTO, implement lifts, etc.). Any power consuming accessory may be disconnected when the means for doing so can be reached from the operator position. A manufacturer\\u27s representative is present during the tests to as certain that the tractor gives its optimum performance. Weight can be added to the tractor to improve drawbar performance in certain tests. Static tire loads and inflation pressures must conform to the specifications of the Tire and Rim Association or to weight limits set by the manufacturer. Specifications All manufacturers provide the Laboratory with detailed specifications which are required for the tests. The Nebraska Tractor Test report provides only a limited amount of data due to space constraints. Preparation for Test The tractor is required to have been limbered up by the manufacturer for a sufficient number of hours; if this was not done, this limber- up is performed at the Tractor Test Lab. Adjustments are permitted during this period. After the start of the official test, no adjustments can be made. Any adjustments. repairs, alterations or replacements are mentioned in the final Nebraska Tractor Test report. At this time, instrumentation for measuring engine rpm, fan speed, temperatures and pressures is installed on the tractor. The tractor is also provided with connections to the Lab\\u27s fuel supply. PTO Performance The tractor PTO is connected to a dynamometer, which is a device for putting a load on the tractor and measuring the power generated by the tractor. During the preliminary runs, the manufacturer is allowed to make some adjustments to optimize the performance. These adjustments, which include the injection pump volume and timing and the high idle set within the specified range, will remain during the whole test program and must be settings guaranteed by the manufacturer. The tests are performed while maintaining an ambient temperature of 75°F (24°C) and at a barometer reading above 28.5 inches Hg (96.6 kPa). Data are taken at intervals after the tractor performance has stabilized. Inlet fuel temperatures are also maintained at a predetermined level. The throttle being set for maximum no-load rpm (High Idle), an increasing load is applied to the PTO by the dynamometer along the operating curve of the engine. The full test report will show the torque, rpm, power and fuel consumption data obtained at Rated Engine speed, Standard PTO speed (either 1000 or 540 rpm), the maximum power on the curve and the torque rise. Drawbar Performance Tests are performed in all gears between one gear below the one at Which 15% slip occurs and a maximum speed of 10 mph (16.1 km/h). In each gear, the throttle is set for maximum speed (High Idle) and the drawbar load increased until maximum drawbar power is obtained. The drawbar load is created by towing load units behind the test-and- measurement vehicle which, itself, is hitched to the tested tractor\\u27s drawbar. For each load, measurements and calculations are made to determine drawbar pull, speed, drawbar power, slip and fuel consumption. All measurements are recorded at intervals after the tractor\\u27s condition is stabilized. No operational limits set by the manufacturer can be exceeded. A second test series investigates the part loads at 75% and 50% of the drawbar load at Rated Engine Speed in a gear close to 4.6 mph (7.5 km/h) and in the gear where maximum drawbar power was obtained. Sound Measurement Sound measurement is made on the test track in two locations-at the driver\\u27s ear and in a location representing bystander noise. The tests at the driver\\u27s ear are performed in several gears and under a number of conditions, but only the maximum level is reported. The bystander sound test is performed with the microphone located at 25 ft (7.5 m) from the centerline of the tractor which is accelerating from a lower speed to full speed in its top gear. The OECD procedure differs. The SAE/ASABE procedures and only the numbers for the same gears and same load conditions can be compared. The SAE/ASABE procedure measures sound in only one gear under different load conditions, whereas the GECD procedure measures sound in different gears between High Idle and Rated Engine speed. For tractors with Mechanical Front Wheel Drive, operator- ear measurements are made with the front-wheel drive engaged and disengaged. Hydraulic Lift Capacity and Flow Hydraulic lift capacity is measured in a special test stand. A frame is fitted to the three-point hitch lift links. Measurements of lift capacity are taken at the hitch points and at a point 24 (610 mm) behind the hitch points when the lower links are horizontal. The load is applied with a hydraulic cylinder and the arms move stepwise through the lift range. The number which is reported is 90% of the load which can be carried throughout the lift range. The booklet reports the lift capacity at 24 (610 mm) behind the hitch points. A second test determines the pressure/flow relationship and performance of the hydraulic system for supplying power to external hydraulic cylinders or hydraulic motors. The Nebraska report provides data on delivery rate, pressure and available powe\n", - "https://core.ac.uk/works/124879733/?t=176ae88baa8443822a1eef97e30f4565-124879733\n" - ] - } - ], - "source": [ - "test_scraper(query, limit, scraper, headless=True)" - ] - }, - { - "cell_type": "code", - "execution_count": null, - "id": "d263056d", - "metadata": {}, - "outputs": [], - "source": [] - } - ], - "metadata": { - "kernelspec": { - "display_name": "Python 3 (ipykernel)", - "language": "python", - "name": "python3" - }, - "language_info": { - "codemirror_mode": { - "name": "ipython", - "version": 3 - }, - "file_extension": ".py", - "mimetype": "text/x-python", - "name": "python", - "nbconvert_exporter": "python", - "pygments_lexer": "ipython3", - "version": "3.12.3" - } - }, - "nbformat": 4, - "nbformat_minor": 5 -}