Path: Home > GB/T > Page729 > GB/T 3871.9-2025

Price & Delivery

US$439.00 · In stock · Download in 9 seconds
GB/T 3871.9-2025: Agricultural tractors - Test procedures - Part 9: Power tests for drawbar
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 3871.9-2025	English	439	Add to Cart	4 days [Need to translate]	Agricultural tractors - Test procedures - Part 9: Power tests for drawbar
GB/T 3871.9-2006	English	180	Add to Cart	0--9 seconds. Auto-delivery	Agricultural tractors -- Test procedures -- Part 9: Power tests for drawbar
GB/T 3871.9-1993	English	199	Add to Cart	2 days [Need to translate]	Test methods for agricultural wheeled and tracklaying tractors. Part 9: Drawbar power tests

GB/T 3871.9-2025: Agricultural tractors - Test procedures - Part 9: Power tests for drawbar

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 65.060.10 CCST61 National Standards of the People's Republic of China Replaces GB/T 3871.9-2006 Agricultural Tractor Testing Procedures Part 9.Traction Power Test Part 9.Powertests for drawbar Published on 2025-10-31 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 9 of GB/T 3871 "Test Procedures for Agricultural Tractors". GB/T 3871 has already published the following parts. ---Part 1.General Requirements; ---Part 2.Measurement of Overall Machine Parameters; ---Part 3.Power Take-Off Shaft Power Test; ---Part 4.Lifting Capacity of Rear Tri-Point Suspension System; ---Part 5.Turning Circle and Through Circle Diameter; ---Part 6.Determination of Braking Performance of Agricultural and Forestry Vehicles; ---Part 7.Driver's Forward Visibility; ---Part 8.Noise Measurement; ---Part 9.Traction Power Test; ---Part 10.Low Temperature Start-up; ---Part 11.High-Temperature Performance Testing; ---Part 12.Usage Testing; ---Part 13.Exhaust Smoke Measurement; ---Part 14.Non-mechanical power output shaft; ---Part 15.Center of Mass; ---Part 16.Shaft Power Measurement; ---Part 17.Engine Air Filter; ---Part 18.Hydraulic Power at the Tractor-Implement Interface; ---Part 19.Steering Performance of Wheeled Tractors; ---Part 20.Bump Test; ---Part 21.Stability. This document supersedes GB/T 3871.9-2006 "Test Procedures for Agricultural Tractors Part 9.Traction Power Test". This document is consistent with... Compared with GB/T 3871.9-2006, apart from structural adjustments and editorial changes, the main technical differences are shown in Appendix A. This document is modified to adopt ISO 789-9.2018 "Test procedures for agricultural tractors - Part 9.Traction power test". The technical differences between this document and ISO 789-9.2018, and the reasons therefor, are as follows. a) Normative reference ISO 789-13.2018 has been removed, and relevant terms and definitions are listed directly (see Chapter 3) to meet the requirements of this paper. Item usage requirements; b) Added normative reference documents GB 17930, GB 19147, GB 29518 and JB/T 7282 and corresponding requirements (see 5.6.1), increase operability; c) The requirements for tread depth have been changed (see 5.9.1) to increase operability; d) The test track requirements have been changed (see 5.11.1) to make the test methods applicable to different types of agricultural tractors; e) The requirements for tractor adjustment (see 5.2.2) and hydraulic pressure (see 5.6.2) have been changed, and the setting requirements for the power control switch have been added. To adapt to the technical characteristics of products currently on the market and ensure the repeatability of experiments; f) The requirements regarding the power influence of auxiliary devices have been modified (see 5.7) to adapt to my country's national conditions, tightening the power test conditions while reducing test operation requirements. Difficulty level; g) The test method for tractors equipped with continuously variable transmissions (CVTs) has been modified (see 6.1.1.3), adding a metal track speed setting to ensure the standard. Accurate ease of use; h) A traction power characteristic test has been added (see 6.1.2) to provide additional information support for product use and research and development; i) Special provisions have been added (see 6.1.3) to provide more information support for product use and research and development; j) Supplementary tests for tractors with no take-off shaft or with a take-off shaft but unable to transmit the full power of the engine were removed from the existing tests. This special case has already been covered in the experiment; k) Test report requirements have been changed (see Chapter 7) to facilitate test operations; l) A test report format (see Appendix B) has been added for ease of use. The following editorial changes have been made to this document. ---This document includes key technical differences from GB/T 3871.9-2006 (see Appendix A). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Tractor Standardization Technical Committee (SAC/TC140). This document was drafted by. Luoyang Xiyuan Vehicle and Power Testing Institute Co., Ltd., Henan University of Science and Technology, and Heilongjiang Provincial Agricultural Machinery Testing and Appraisal Center. Fixed station, Shandong Academy of Agricultural Machinery Sciences, National Agricultural Mechanization Station of the Ministry of Agriculture and Rural Affairs, Henan Provincial Institute of Mechanical Design and Research Co., Ltd., Luoyang Tractor Research Institute Co., Ltd., Jiangsu Coastal Agricultural Machinery Testing Co., Ltd., China YTO Group Corporation, Weichai Lovol Smart Agriculture Technology Co., Ltd., Ningbo Benye Heavy Industry Co., Ltd. The main drafters of this document are. Jia Fang, Xu Liyou, Zhang Benling, Li Xianpeng, Peng Peng, Zhao Junjie, Wang Zhenpeng, Chen Song, Liao Hanping, and Zhou Guiping. Liu Jiaze, Chang Xiongbo, Sun Panpan, Song Zhongjie, Chen Guangkuo, Jin Donghui, Yu Xiugang, Wang Jianjun, Li Fuxin, Yang Liangjun, Wang Zhichao, Zhang Kai Yan Xianghai. This document was first published in 1983, revised for the first time in.1993, revised for the second time in.2006, and this is the third revision.

Introduction

Testing methods are an important means of verifying the performance of products. Different testing methods yield different test results, and it is essential to establish testing method standards. The goal of this standard is to achieve a single standard, a single inspection, and industry-wide acceptance. Tractors, as the power source for mobile agricultural machinery, operate in harsh environments. Furthermore, since there are many requirements regarding personal safety and environmental hygiene, a series of testing methods are needed to verify whether its performance meets the requirements. In this regard, my country has established a complete set of tractor testing methods by studying and referencing international standards and advanced foreign standards. The GB/T 3871 "Test Procedures for Agricultural Tractors" aims to establish test procedures for verifying the performance indicators of tractors, and is proposed to consist of 22 parts. constitute. ---Part 1.General Requirements. The purpose is to standardize the general requirements and procedures for acceptance, break-in, and testing of agricultural tractor prototypes. Report writing format. ---Part 2.Measurement of Overall Machine Parameters. The purpose is to standardize the test procedures for measuring the overall 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 in agricultural tractors. ---Part 4.Lifting Capacity of Rear Three-Point Suspension System. The purpose is to standardize the lower suspension point of the three-point suspension system on agricultural tractors. Test procedures for maximum lifting force, maximum lifting force on the frame, lifting time and static settlement. ---Part 5.Steering Circle and Through Circle Diameter. The purpose is to standardize the measurement of the steering circle and through circle diameters for agricultural wheeled tractors. program. ---Part 6.Determination of Braking Performance of Agricultural and Forestry Vehicles. The purpose is to standardize the braking performance of agricultural tractors, self-propelled agricultural vehicles, and trailers. Test procedures for braking performance of traction agricultural machinery. ---Part 7.Driver's Forward Visibility. The purpose is to standardize the general requirements, test procedures, and verification methods for the driver's forward visibility in agricultural tractors. Collection criteria. ---Part 8.Noise Measurement. The aim is to standardize noise levels at the driver's operating position and dynamic environmental noise of agricultural and forestry tractors. The experimental procedure for sound. ---Part 9.Traction Power Test. The purpose is to standardize the testing procedures for the traction power of agricultural tractors. ---Part 10.Low Temperature Starting. The purpose is to standardize the test procedures for the low temperature starting performance of agricultural tractors. ---Part 11.High-Temperature Performance Testing. The purpose is to standardize the testing procedures for the adaptability of agricultural tractors to high-temperature environments. ---Part 12.Usage Testing. The purpose is to standardize the usage testing of agricultural tractors under actual operating conditions. program. ---Part 13.Exhaust Smoke Measurement. The purpose is to standardize the testing of exhaust smoke opacity of agricultural tractor engines at stable speeds. Verification procedure. ---Part 14.Partial Power Output Shaft for Non-Mechanical Transmission. The purpose is to standardize non-mechanical connections in agricultural tractors. Test procedure for the power output system of the tractor. ---Part 15.Center of Gravity. The purpose is to standardize the test procedures for measuring the center of gravity position of agricultural tractors. ---Part 16.Shaft Power Measurement. The purpose is to standardize the test procedures for measuring the shaft power of agricultural tractors with one or two drive shafts. Verification procedure. ---Part 17.Engine Air Filters. The purpose is to standardize the testing procedures for engine air filters used in agricultural tractors. ---Part 18.Hydraulic Power at the Tractor-Implement Interface. The purpose is to standardize the external hydraulic power at the connection between agricultural tractors and implements. Test procedures for hydraulic pressure and hydraulic power on the output device. ---Part 19.Steering Performance of Wheeled Tractors. The purpose is to standardize the steering performance of agricultural wheeled tractors with at least two axles in normal and... Test procedures for turning in emergency situations. ---Part 20.Bump Test. The purpose is to standardize the test procedures for bump tests on agricultural tractors. ---Part 21.Stability. The purpose is to standardize the test procedures for the longitudinal and lateral stability of wheeled tractors on ramps. ---Part 22.Driver's Side and Rear View. The purpose is to standardize the driver's side and rear view for agricultural tractors. Requirements, test procedures, and acceptance criteria. As self-propelled power machinery, tractors primarily operate by towing implements. The tractor's traction performance directly... A comprehensive evaluation of a tractor's traction performance can fully characterize its technical properties, such as power and economy, and promote... Tractor product technology development and upgrading. Agricultural Tractor Testing Procedures Part 9.Traction Power Test

1 Scope

This document specifies the test procedures for determining the traction power of agricultural tractors. This document applies to agricultural wheeled and tracked tractors.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB 17930 Gasoline for Vehicles GB 19147 Diesel fuel for vehicles GB 29518 Urea aqueous solution as a reducing agent for nitrogen oxides in diesel engines (AUS32) JB/T 7282 Selection of Types and Specifications of Lubricating Oils for Tractors

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 wheelbase The distance between two planes that pass through the center points of the front and rear wheels on the same side of the tractor and are perpendicular to the longitudinal center plane and the support surface. 3.2 traction power drawbarpower The power is measured on the tow bar and maintained for at least 20 seconds or for a distance of 20 meters (whichever is longer). 3.3 maximum drawbar pull According to the provisions of 5.9, 5.11 and 6.1.1, at the traction engagement point recommended by the manufacturer, the tractor can maintain the maximum [value] in its longitudinal direction. High horizontal traction force. 3.4 The mass of fuel consumed per unit of work done. 3.5 reactant Reduction agent A medium supplied to the exhaust aftertreatment system as required by the exhaust control system. Note. Ammonia or urea is usually used as the reactant. ...