GB/T 14781-2023Earth-moving machinery - Wheeled machines - Steering requirements (English PDF)

1 Scope

This document specifies the steering system test used to evaluate the steering capabilities of wheeled and ride-on earth-moving machinery defined in GB/T 8498-2017.

test methods and performance criteria. Wheeled machines include machines equipped with wheels, one or more rollers, or track wheel assemblies.

This document addresses the following significant hazards, hazards, and hazards associated with wheeled machines that are reasonably foreseeable by the manufacturer and are

Hazardous situation or hazardous event.

---Mechanical hazards;

---Ergonomics hazards;

---Hazards caused by maintenance;

---Hazards caused by operating systems;

---Hazards related to driving functions.

This document does not contain content related to the functional safety of the steering system.

This document does not apply to wheeled machines manufactured before the date of this document.

2 Normative reference documents

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

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

GB/T 8592-2001 Determination of steering dimensions of tire-type earthmoving machinery (ISO 7457.1997, IDT)

GB/T 8595-2023 Control devices for drivers of earthmoving machinery (ISO 10968.2020, IDT)

GB/T 21154-2014 Quality measurement methods for complete earthmoving machinery and its working devices and components (ISO 6016.2008,

IDT)

GB/T 39309-2020 Specification for steel wire or fabric reinforced single pressure type rubber hoses and hose assemblies for hydraulic use (ISO 18752.2014,IDT)

ISO 3450.2011 Performance requirements and test methods for braking systems of earth-moving machinery, wheeled or high-speed rubber-tracked machines (Earth-movingmachinery-Wheeledorhigh-speedrubber-trackedmachines-Performancerequire-

Note. GB/T 21152-2018 Performance requirements and test methods for braking systems of earthmoving machinery wheeled or high-speed rubber tracked machines (ISO 3450.

2011,MOD)

ISO 12100.2010 Safety of machinery design, risk assessment and risk reduction (Safetyofmachinery-General)

Note. GB/T 15706-2012 General principles for mechanical safety design risk assessment and risk reduction (ISO 12100.2010, IDT)

3 Terms and definitions

The following terms and definitions as defined in ISO 12100 apply to this document.

GB/T 17300 | GB/T 16936 | GB/T 17301 | GB/T 14782 | GB/T 14780 | […]