GB/T 21956.4-2009
The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors.Part 4:Dynamic testing method of rear mounted ROPS (English Version)

Standard No.

GB/T 21956.4-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 21956.4-2009

Scope

This part of GB/T 21956 specifies the dynamic test methods and acceptance conditions for rear-mounted protective devices of agricultural and forestry narrow-track wheeled tractors. This part of GB/T 21956 applies to pneumatic tire tractors with two axles, the ground clearance of the lowest points of the front and rear axles is not more than 600 mm; If the distance is fixed or adjustable, the minimum wheel base should not be greater than 1150 mm; the unloaded mass of the tractor (including protective devices and the largest tire provided by the manufacturer) is greater than 600 kg, and if it is a bidirectional tractor, it should be less than 3000 kg at the same time .

GB/T 21956.4-2009 Referenced Document

• GB/T 6236 Tractors and machinery for agricultural and forestry.Seat index point
• GB/T 6960.7 Tractor terminology Part 7: Cab, seat and sheet metal
• GB/T 700 Carbon structural steels

GB/T 21956.4-2009 history

• 2009 GB/T 21956.4-2009 The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors.Part 4:Dynamic testing method of rear mounted ROPS

GB/T 21956.4-2009 -All Parts