GB/T 25684.8-2021Earth-moving machinery - Safety - Part 8: Requirements for graders (English PDF)

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"

drafted:

This document is part 8 of GB/T 25684 "Earth-moving Machinery Safety": GB/T 25684 has released the following parts:

--- Part 1: General requirements;

--- Part 2: Requirements for bulldozers;

--- Part 3: Requirements for loaders;

--- Part 4: Requirements for backhoe loaders;

--- Part 5: Requirements for hydraulic excavators;

--- Part 6: Requirements for dump trucks;

--- Part 7: Requirements for scrapers;

--- Part 8: Requirements for motor graders;

--- Part 9: Requirements for pipelayers;

--- Part 10: Requirements for trenchers;

--- Part 11: Requirements for backfill compactors;

--- Part 12: Requirements for mechanical excavators;

--- Part 13: Requirements for road rollers:

This document replaces GB 25684:8-2010 "Earth-moving Machinery Safety Part 8: Requirements for Motor Graders", and GB 25684:8-

Compared with:2010, except for structural adjustment and editorial changes, the main technical changes are as follows:

a) Changed the provisions for the driver's seat (see 4:2:1, 4:2:1 of the:2010 edition);

b) Changed the provisions for rear windows (see 4:2:2, 4:2:2 of the:2010 edition);

c) Changed the safety requirements for steering system driving conditions (see 4:4:4, 4:4:4 of the:2010 edition);

d) The provisions of "safety requirements and/or verification of protective measures" have been deleted (see Chapter 5 of the:2010 edition);

e) The provisions on the use of information have been changed (see Chapter 5, Chapter 6 of the:2010 edition);

f) Changed the legend of the front wheel steering grader (see Appendix A, Appendix A of the:2010 edition):

This document is equivalent to ISO 20474-8:2017 "Safety of earth-moving machinery - Part 8: Requirements for motor graders":

Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:

Introduction

This document is a Type C standard defined by ISO 12100:

The scope of this document describes the machinery involved and the scope of the hazards, hazardous states or hazardous events involved:

Since the design and manufacture of the machine follow the requirements of Class C standards, when the requirements of Class C standards are different from those of Class A or Class B standards

At the same time, the requirements of Class C standards take precedence over other standards:

GB/T 25684 "Earth-moving Machinery Safety" is a basic and universal guideline for guiding my country's earth-moving machinery products to meet relevant safety requirements:

standard: GB/T 25684 aims to establish general safety requirements applicable to earth-moving machinery products and special safety requirements for specific machine families

requirements, it is proposed to be composed of 14 parts:

--- Part 1: General requirements: The purpose is to establish general safety requirements applicable to all machine types in the earthmoving machinery industry:

The foundational standard for a full range of standards:

--- Part 2: Requirements for bulldozers: The purpose is to propose specific products that meet the unique characteristics of bulldozer products:

Security Requirements Clause:

--- Part 3: Requirements for loaders: The purpose is to propose specific products that meet the characteristics of their own products according to the unique characteristics of loader products:

Security Requirements Clause:

--- Part 4: Requirements for backhoe loaders: The purpose is to propose a product that meets the unique characteristics of backhoe loader products:

Point-specific security requirements clause:

--- Part 5: Requirements for hydraulic excavators: The purpose is to put forward the unique characteristics of hydraulic excavator products that meet the characteristics of their own products:

Point-specific security requirements clause:

--- Part 6: Requirements for dump trucks: The purpose is to propose specific products that meet the unique characteristics of dump truck products:

Security Requirements Clause:

--- Part 7: Requirements for scrapers: The purpose is to propose specific products that meet the characteristics of their own products according to the unique characteristics of scraper products:

Security Requirements Clause:

--- Part 8: Motor grader requirements: The purpose is to propose specific products that meet the unique characteristics of motor graders:

Security Requirements Clause:

--- Part 9: Requirements for pipelayers: The purpose is to propose specific products that meet the unique characteristics of the pipelayer products:

Security Requirements Clause:

--- Part 10: Requirements for trenchers: The purpose is to propose special features that conform to the characteristics of the trencher products according to the unique characteristics of the trencher products:

Security requirements clauses:

--- Part 11: Requirements for backfill compactors: The purpose is to propose products that meet the unique characteristics of backfill compactor products:

Features specific security requirements clause:

--- Part 12: Requirements for mechanical excavators: The purpose is to propose products that meet the unique characteristics of mechanical excavators:

Features specific security requirements clause:

--- Part 13: Requirements for road rollers: The purpose is to propose special characteristics that meet the characteristics of the rollers according to the unique characteristics of the road roller products:

Security requirements clauses:

--- Part 14: Requirements for small implement carriers: The purpose is to put forward a proposal to meet the unique characteristics of small implement carrying machine products:

Specific safety requirements clauses for their own product features:

The safety requirements of Part 2 to Part 14 are used in conjunction with the general requirements of Part 1 to better meet the use requirements:

Earthmoving Machinery Safety

Part 8: Requirements for motor graders

1 Scope

This document specifies the safety requirements for motor graders as defined in ISO 6165;

When applied under operating conditions, all major hazards, hazardous states and hazardous events related to it (see the annex of GB/T 25684:1-2021):

Record A); and specifies techniques for eliminating or reducing risks arising from significant hazards, hazardous states or hazardous events in use, operation and maintenance

measure:

This document is used in conjunction with GB/T 25684:1 (specifying general safety requirements for two or more families of earth-moving machinery): of this document

Specific requirements take precedence over the general requirements of GB/T 25684:1:

This document does not apply to machines manufactured prior to the implementation of this document:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations

documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to

this document:

GB/T 25684:1-2021 Earthmoving Machinery Safety Part 1: General Requirements (ISO 20474-1:2017, IDT)

ISO 6165 Earth-moving machinery basic types identification, terms and definitions (Earth-movingmachinery-Basictypes-

Identificationandtermsanddefinitions)

Note: GB/T 8498-2017 Earth-moving machinery basic type identification, terms and definitions (ISO 6165:2012, IDT)

ISO 7134 Terminology and commercial specifications for earth-moving machinery graders (Earth-movingmachinery-Graders-Terminol-

ogyandcommercialspecifications)

Note: GB/T 7920:9-2020 Terminology and commercial specifications for earth-moving machinery graders (ISO 7134:2013, IDT)

ISO 20474-1 Earth-moving machinery Safety Part 1: General requirements (Earth-movingmachinery-Safety-Part 1:

General requirements)

Note: GB/T 25684:1-2021 Earthmoving Machinery Safety Part 1: General Requirements (ISO 20474-1:2017, IDT)

3 Terms and Definitions

Terms and definitions defined in ISO 20474-1 and ISO 7134 and the following terms and definitions apply to this document:

3:1

grader grader

Self-propelled wheeled machine with an adjustable blade between the front and rear axles;

A ripper rake can also be installed between the two bridges:

Note 1: The main purpose of the motor grader is to level the ground, scrape slopes, dig trenches or loosen materials through the forward movement of the machine:

Note 2: See Appendix A for the legend of the grader:

[Source: GB/T 8498-2017, 4:8, with modifications]