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GB/T 3871.3-2025 English PDF

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GB/T 3871.3-2025: Agricultural tractors - Test procedures - Part 3: Power tests for power take-off
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GB/T 3871.3: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3871.3-2025English369 Add to Cart 4 days [Need to translate] Agricultural tractors - Test procedures - Part 3: Power tests for power take-off Valid GB/T 3871.3-2025
GB/T 3871.3-2006English130 Add to Cart 0--9 seconds. Auto-delivery Agricultural tractors -- Test procedures -- Part 3: Power tests for power take-off Valid GB/T 3871.3-2006
GB/T 3871.3-1993English199 Add to Cart 2 days [Need to translate] Test methods for agricultural wheeled and tracklying tractors Part 3: PTO power tests Obsolete GB/T 3871.3-1993

PDF similar to GB/T 3871.3-2025


Standard similar to GB/T 3871.3-2025

GB/T 15370.2   GB/T 3871.9   GB/T 3871.6   GB/T 3871.4   GB/T 3871.18   GB/T 3871.5   

Basic data

Standard ID GB/T 3871.3-2025 (GB/T3871.3-2025)
Description (Translated English) Agricultural tractors - Test procedures - Part 3: Power tests for power take-off
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard T61
Classification of International Standard 65.060.10
Word Count Estimation 18,131
Date of Issue 2025-06-30
Date of Implementation 2026-01-01
Older Standard (superseded by this standard) GB/T 3871.3-2006
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 3871.3-2025: Agricultural tractors - Test procedures - Part 3: Power tests for power take-off

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ICS 65.060.10 CCST61 National Standard of the People's Republic of China Replaces GB/T 3871.3-2006 Agricultural tractor test procedures Part 3.Power take-off shaft power test Released on June 30, 2025 Implementation on January 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is Part 3 of GB/T 3871 “Test procedures for agricultural tractors”. GB/T 3871 has been published in the following parts. --- Part 1.General requirements; --- Part 2.Measurement of whole machine parameters; --- Part 3.Power take-off shaft power test; --- Part 4.Lifting capacity of rear three-point hitch; --- Part 5.Turning circle and passing circle diameter; --- Part 6.Determination of braking performance of agricultural and forestry vehicles; --- Part 7.Driver's front field of view; --- Part 8.Noise measurement; --- Part 9.Traction power test; --- Part 10.Low temperature starting; --- Part 11.High temperature performance test; --- Part 12.Operational test; --- Part 13.Exhaust smoke measurement; --- Part 14.Power take-off shafts for partial power output without mechanical transmission; --- Part 15.Center of mass; --- Part 16.Determination of shaft power; --- Part 17.Engine air filters; --- Part 18.Hydraulic power at the interface between tractor and implement; --- Part 19.Steering performance of wheeled tractors; --- Part 20.Bump test; --- Part 21.Stability. This document replaces GB/T 3871.3-2006 "Agricultural tractor test procedures Part 3.Power take-off shaft power test" and Compared with GB/T 3871.3-2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope of application of the document has been changed (see Chapter 1, Chapter 1 of the.2006 edition); b) The measurement units and errors have been changed (see Chapter 4, Chapter 4 of the.2006 edition); c) Changed “technical requirements” to “test prototype” and modified the corresponding technical content (see 5.1, 5.1 of the.2006 edition); d) Changed “preheating and initial adjustment” to “running-in and adjustment” and “preheating”, and changed the corresponding technical content (see 5.2 and 5.13, 5.2 of the.2006 edition); e) Added the provisions of “Instructions for Use” (see 5.3), “Maintenance” (see 5.4) and “Technical Specifications” (see 5.5); f) Changed "fuel and lubricants" and "fuel consumption" to "fuel, reagents and lubricants", and changed the corresponding technical content (See 5.6, 5.3 and 5.6 of the.2006 edition); g) The provisions on “auxiliary equipment” have been modified (see 5.7, 5.4 of the.2006 edition); h) Changed “General Principles” to “Test Equipment” and modified the corresponding technical content (see 5.9, 6.1.1 of the.2006 edition); i) Added the provisions of “Optional Power Take-off Shaft Ratio” (see 5.10) and “Test Rules” (see 5.11); j) Changed “auxiliary measurements” to “measurement requirements” and modified the corresponding technical content (see 5.12, 6.1.7 of the.2006 edition); k) The test procedure for the speed change test under full load has been changed (see 6.1, 6.1.3 of the.2006 edition); l) Changed "power" to "maximum power test" and modified the corresponding test procedures (see 6.2, 6.1.2 of the.2006 edition); m) Change "maximum power time-varying load test at engine rated speed and PTO standard speed" to "variable load test" and change The corresponding test procedures were modified (see 6.3, 6.1.4 of the.2006 edition); n) Added the test procedure of “speed change test under variable load” (see 6.4); deleted the “belt or pulley shaft test (optional)” (see 2006 edition) and “Rated power” (see.2006 edition) 6.3; o) The test report requirements have been changed (see Chapter 7, 6.1.6 of the.2006 edition); p) The format of the test report has been changed (see Appendix A of the.2006 edition). This document is modified to adopt ISO 789-1.2018 "Agricultural tractor test procedures - Part 1.Power take-off shaft power test". The technical differences between this document and ISO 789-1.2018 and their reasons are as follows. a) The scope of application of the document (see Chapter 1) has been changed to be consistent with my country's tractor terminology standards; b) The chapter “Terms and Definitions” (see Chapter 3) has been revised for ease of use; c) The measurement units and errors (see Chapter 4) have been changed to enhance operability; d) The requirements for test sample selection (see 5.1) have been changed to meet the test needs; e) Added the test requirements for tractors equipped with manual power adjustment switches in "Run-in and Adjustment" (see 5.2.2) to adapt to the industry Development, enhancing operability; f) Change "fuel and lubricants" to "fuel, reagents and lubricants", and add fuel, lubricants and urea aqueous solution for testing Comply with the requirements of my country's standardization documents (see 5.6.1); modify the requirements for test fuel temperature (see 5.6.2), enhance operability Sexuality; g) The test requirements for “auxiliary equipment” (see 5.7) have been modified to enhance operability; h) ISO 500-1, ISO 500-2 and ISO 500-3 are replaced by the normative references GB/T 1592.1, GB/T 1592.2 and GB/T 1592.3. ISO 500-3, replaces ISO 8759-1 with ISO 8759-3 (see 5.11.1) to enhance operability; i) The measurement requirements for some parameters have been changed, and the measurement locations for each temperature parameter have been further clarified (see 5.12) to enhance operability; j) Added test requirements for reagent consumption in the speed test, maximum power test and variable load test under full load (see 6.1, 6.2 and 6.3), supplement the test conditions of tractor reagent consumption rate to better evaluate the tractor reagent consumption rate; k) The specific value of the PTO shaft standard speed has been deleted from "maximum power at PTO shaft standard speed" (see ISO 789-1. 2018, 6.2.2), to meet the requirements of industry development; l) In the “Variable load test”, “a) 6.2.1 torque obtained” (see 6.3.1) and “a) 6.2.2 torque obtained” (see 6.3.2) are added to strengthen operability; m) The description of "five additional points for calculating fuel consumption characteristics" (see 6.4.1) has been modified to eliminate ambiguity and enhance operability; n) “rated power” (see 6.5 of ISO 789-1.2018) has been deleted to eliminate ambiguity and maintain consistency of the standard; o) Added "Engine Bench Test" (see 6.5) to meet the requirements of domestic industry development; p) The test report requirements (see Chapter 7) have been changed to unify the standards; q) Added the test report format (see Appendix A) for ease of use. The following editorial changes have been made to this document. --- Change the name of the standard to "Agricultural tractor test procedures Part 3.Power take-off shaft power test" to make it consistent with the existing standard Standardized document coordination. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Tractors (SAC/TC140). This document was drafted by. Shandong Agricultural Machinery Science Research Institute, Luoyang Xiyuan Vehicle and Power Inspection Institute Co., Ltd., Shandong Weifang Lu China Tractor Co., Ltd., Shandong Agricultural Machinery Technology Extension Station, Luoyang Tractor Research Institute Co., Ltd., Agricultural Mechanization Department of the Ministry of Agriculture and Rural Affairs Main Station, Weichai Lovol Smart Agriculture Technology Co., Ltd., Jiangsu Coastal Agricultural Machinery Testing Co., Ltd., Henan Machinery Design and Research Institute Co., Ltd., Ningbo Benye Heavy Industry Co., Ltd., and Henan University of Science and Technology. The main drafters of this document are. Chen Guangkuo, Liu Fengping, Sun Panpan, Song Tao, Xu Shufen, Jia Fang, Chen Song, Wang Qinghou, Cui Chuanbing, Han Xingchang, Yin Tao, Wu Liancheng, Liao Hanping, Song Zhongjie, Tan Zihan, Wang Zhenpeng, Yang Liangjun, Sun Shouxiang, Wang Baolong, Li Qinglei, Wang Zhichao, Xu Liyou, Yan Xianghai, Wu Meng, Gao Qiang, Wang Yong, and Wei Wensheng. This document was first issued in 1983, revised for the first time in.1993, revised for the second time in.2006, and this is the third revision.

introduction

The test method is an important means to test the performance of products. Different test methods can produce different test results. The purpose of the standard is to achieve a standard, a single test, and industry-wide recognition. As the power source of mobile agricultural machinery, tractors have a harsh working environment. It is poor and involves many requirements in terms of personal safety and environmental hygiene, so a series of test methods are needed to check whether its performance meets the requirements. In this regard, my country has established a complete set of tractor test methods by studying and referring to international standards and foreign advanced standards. GB/T 3871 aims to establish test procedures for inspecting tractor performance indicators and is intended to consist of 22 parts. --- Part 1.General requirements. The purpose is to standardize the acceptance, running-in, test general requirements and test Report writing format. --- Part 2.Measurement of complete machine parameters. The purpose is to standardize the test procedures for measuring complete machine parameters of agricultural tractors. --- Part 3.Power take-off shaft power test. The purpose is to standardize the test procedure for the effective power of the power take-off shaft of agricultural tractors. --- Part 4.Lifting capacity of rear three-point hitch. The purpose is to standardize the lifting capacity of the lower suspension point of the three-point hitch of agricultural tractors. Test procedures for maximum lifting force, maximum lifting force on the frame, lifting time and static settlement. --- Part 5.Turning circle and passing circle diameter. The purpose is to standardize the measurement of turning circle and passing circle diameter of agricultural wheeled tractors program. --- Part 6.Determination of braking performance of agricultural and forestry vehicles. The purpose is to standardize agricultural tractors and self-propelled agricultural vehicles and trailers and test procedures for braking performance of trailed agricultural machinery. --- Part 7.Driver's front field of view. The purpose is to standardize the general requirements, test procedures and verification of the driver's front field of view of agricultural tractors. Collection criteria. --- Part 8.Noise measurement. The purpose is to standardize the noise at the driver's operating position and dynamic environmental noise of agricultural and forestry tractors. Sound test procedures. --- Part 9.Traction power test. The purpose is to standardize the test procedure for the traction power of agricultural tractors. --- Part 10.Low temperature starting. The purpose is to standardize the test procedure for the low temperature starting performance of agricultural tractors. --- Part 11.High temperature performance test. The purpose is to standardize the test procedures for the adaptability of agricultural tractors to use in high temperature environments. --- Part 12.Operational test. The purpose is to standardize the operation test of agricultural tractors under actual conditions of use. program. --- Part 13.Exhaust smoke measurement. The purpose is to standardize the test of exhaust smoke density of agricultural tractor engines at steady speed. Verification procedures. --- Part 14.Non-mechanical transmission of partial power output power take-off shaft. The purpose is to standardize the non-mechanical connection of agricultural tractors Test procedure for the power take-off system of a tractor. --- Part 15.Centre of mass. The purpose is to standardize the test procedure for measuring the centre of mass position of agricultural tractors. --- Part 16.Determination of shaft power. The purpose is to standardize the test method for determining the shaft power of agricultural tractors with one or two drive shafts. Verification procedures. --- Part 17.Engine air filters. The purpose is to standardize the test procedures for engine air filters for agricultural tractors. --- Part 18.Hydraulic power at the interface between tractors and implements. The purpose is to standardize the external hydraulic power at the interface between agricultural tractors and implements. Test procedures for hydraulic pressure and hydraulic power on output devices. --- Part 19.Steering performance of wheeled tractors. The purpose is to specify the steering performance of agricultural wheeled tractors with at least two axles in normal and Test procedures for steering conditions in emergency situations. --- Part 20.Bump test. The purpose is to standardize the test procedure for the bump test of agricultural tractors. --- Part 21.Stability. The purpose is to specify the test procedures for the longitudinal and lateral stability of wheeled tractors on ramps. --- Part 22.Driver's side and rear vision. The purpose is to standardize the general side and rear vision of agricultural tractors. Requirements, test procedures and acceptance criteria. As a self-propelled power machine, one of the main functions of the tractor is to provide operating power to other agricultural machinery through the power output shaft. The performance of the power output shaft is an important evaluation index of tractors. It can be used to evaluate the power and economy of the tractor as a whole, and provide a reference for improving product quality and efficiency. Provide effective data support. Agricultural tractor test procedures Part 3.Power take-off shaft power test

1 Scope

This document specifies the test procedure for the available power take-off shaft power of agricultural tractors. This document applies to agricultural wheeled and crawler tractors.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 1592.1 Rear power take-off shafts for agricultural tractors, types 1, 2, 3 and 4 - Part 1.General requirements, safety requirements, protection Cover size and clearance range (GB/T 1592.1-2016, ISO 500-1.2014, MOD) GB/T 1592.2 Rear power take-off shafts for agricultural tractors, types 1, 2, 3 and 4 - Part 2.Dimensions of protective covers for narrow-track tractors and gap range (GB/T 1592.2-2016, ISO 500-2.2004, MOD) GB/T 1592.3 Rear power take-off shafts for agricultural tractors, types 1, 2, 3 and 4 - Part 3.Dimensions and spline dimensions of power take-off shafts Inch, PTO shaft position (GB/T 1592.3-2016, ISO 500-3.2014, MOD) GB/T 6960.1 Tractor terminology Part 1.Complete machine GB 17930 Motor Gasoline GB 19147 Diesel fuel for vehicles GB 29518 Urea aqueous solution as nitrogen oxide reducing agent for diesel engines (AUS32) JB/T 7282 Selection of types and specifications of lubricating oils for tractors ISO 8759-3 Agricultural tractor front devices Part 3.Power take-off shaft. General requirements and location

3 Terms and Definitions

The terms and definitions defined in GB/T 6960.1 and the following apply to this document. 3.1 The mass of fuel consumed per unit of work. 3.2 Reagent Reduction agent A medium provided to the exhaust after-treatment system according to the needs of the exhaust control system. 3.3 The mass of reactants consumed per unit of work.

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