GB/T 42784.1-2023Rough-terrain trucks - Visibility test methods and their verification - Part 1: Variable-reach trucks (English PDF)

1 Scope

This document specifies the boundaries and radii of a 1m rectangle around an off-road telehandler for determining and evaluating the operator's field of view

Static test method on a 12m field of view test circle: This document specifies the performance requirements for the field of view:

This document applies to off-road models with the operator seat located on the left or center of the jib (excluding the operator seat located on the right side of the jib)

Telescopic forklift (hereinafter referred to as "forklift"):

This document does not apply to:

--- Forklifts (reach stackers) designed to handle freight containers;

--- Articulated telescopic wheel loader;

--- Rotary forklift;

---Truck-mounted forklift:

NOTE: The method used does not cover the full range of the operator's field of view, but provides information to help determine the acceptability of the forklift's field of view:

2 Normative references

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

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document:

ISO 5053-1 Terminology for industrial vehicles Part 1: Types of industrial vehicles (Industrialtrucks-Vocabulary-

Note: GB/T 6104:1-2018 Terminology and Classification of Industrial Vehicles Part 1: Types of Industrial Vehicles (ISO 5053-1:2015, IDT)

ISO 5353 Calibration points for earth-moving machinery, agricultural and forestry tractors and mechanical seats (Earth-moving machinery, and tractors

Note: GB/T 8591-2000 Calibration points for driver's seat of earth-moving machinery (eqvISO 5353:1995)

ISO 10896-1 Safety requirements and verification for off-road forklifts Part 1: Telescopic forklifts (Rough-terraintrucks-

Note: GB/T 35205:1-2017 Safety requirements and verification for off-road forklifts Part 1: Telescopic forklifts (ISO 10896-1:2012, IDT)

ISO 12100 General principles of machinery safety design risk assessment and risk reduction (Safetyofmachinery-General

Note: GB/T 15706-2012 Risk Assessment and Risk Reduction of Machinery Safety Design General Principles (ISO 12100:2010, IDT)

3 Terms and Definitions

The terms and definitions defined in ISO 10896-1, ISO 5053-1 and ISO 12100 and the following apply to this document:

3:1

Test ground testsurface

The reference ground plane for the visual field test is a compacted or hard ground area with a slope of (0±2)%: […]