Tractors for agriculture and forestry - Roll-over protective structures on narrow tractors - Part 1: Front-mounted ROPS
This document specifies procedures for both the *static* and *dynamic strength testing* of roll-over protective structures (ROPS) front-mounted on narrow tractors.
It defines the clearance zone and acceptance conditions for rigid or tiltable, front, two-post ROPS, including any associated rear fixtures, and is applicable to tractors so equipped having the following characteristics:
NOTE It is understood that the axle mounted with the wider tyres is set at a track width of not more than 1 150 mm. Tyre track width is adjustable so that the outer edges of the narrower tyres do not extend beyond the outer edges of the tyres of the other axle. Where the two axles are fitted with rims and tyres of the same size, the fixed or adjustable track width of the two axles is less than 1 150 mm.
This document also specifies optional testing procedures for both seat anchorage points and folding efforts of front-mounted ROPS designed to fold.
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