GB/T 25684.2-2021Earth-moving machinery - Safety - Part 2: Requirements for dozers (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 2 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 25684:2-2010 "Earth-moving Machinery Safety Part 2: Requirements for Bulldozers", and GB 25684:2-

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

a) Changed the scope of the standard (see Chapter 1, Chapter 1 of the:2010 edition);

b) Changed terms and definitions (see Chapter 3, Chapter 3 of the:2010 edition);

c) The provision that does not require the installation of suspension seats is deleted (4:1 of the:2010 edition);

d) Changed the provisions on the input spectrum of the driver's seat for different types of bulldozers (see 4:2, 4:2 of the:2010 edition);

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

This document is equivalent to ISO 20474-2:2017 "Safety of Earth-moving Machinery Part 2: Requirements for Bulldozers":

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 characteristics that meet 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 2: Requirements for bulldozers

1 Scope

This document specifies the safety requirements for wheeled and tracked bulldozers and their rear-mounted winches as defined in ISO 6165; specifies the earth-moving machinery

All significant hazards, hazardous states and hazardous events associated with the manufacturer's intended use or under conditions of reasonable mishandling foreseen

(See Appendix A of GB/T 25684:1-2021); and specifies the elimination or reduction of major hazards, dangerous states or

Technical measures for risks arising from hazardous events:

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 8419-2007 Laboratory Evaluation of Earth-moving Machinery Driver Seat Vibration (ISO 7096:2000, IDT)

GB/T 8420-2011 Earth-moving machinery driver's body size and the driver's minimum activity space (ISO 3411:2007, IDT)

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 6405-2 Symbols for earth-moving machinery driver controls and other display devices - Part 2: Machines, working devices and accessories

Special symbols for (Earth-movingmachinery-Symbolsforoperatorcontrolsandotherdisplays-Part 2:

Symbolsforspecificmachines,equipmentandaccessories)

Note: GB/T 8593:2-2021 Symbols for earth-moving machinery driver operating devices and other display devices Part 2: Machines, working devices and accessories

Special symbols (ISO 6405-2:2017, IDT)

ISO 6747 Terminology and commercial specifications for earth-moving machinery-Dozers-

Terminology and commercial specifications)

Note: GB/T 8590-2018 Terminology and commercial specifications for earth-moving machinery and bulldozers (ISO 6747:2013, IDT)

ISO 9244 Earth-moving machinery safety signs and hazard graphics general rules (Earth-movingmachinery-Machinesafetyla-

bels-General principles)

Note: GB :20178-2014 General Rules for Safety Labels of Earth-moving Machinery (ISO 9244:2008, IDT)

ISO 10968 Earth-moving machinery operator's controls (Earth-movingmachinery-Operator'scontrols)

Note: GB/T 8595-2008 Earth-moving machinery driver's control device (ISO 10968:2004, IDT)

ISO 19472 Forestry machinery truck mounted winches dimensions, performance and safety requirements (Machineryforforestry-

Winches-Dimensions, performance and safety)

Note: LY1289-2008 Forestry machinery vehicle-mounted winch size, performance and safety requirements (ISO 19472:2006, IDT)