ISO-789-2 Historical Revision Information
Part 2: Rear Three-Point Linkage Lifting Capacity, Agricultural Tractors - Test Procedures

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Specifies test procedures for determining the lifting capacity of rear-mounted three-point linkage systems: a) the maximum vertical force which can be exerted by the hydraulic lift at the lower hitch points throughout their full range of movement; b) the maximum vertical force which can be exerted by the hydraulic lift, at a point 610 mm to the rear of the hitch points on a frame attached to the three-point linkage, throughout its full range of movement; c) optionally, the ability of the lifting system to maintain the load in the lifted position without hydraulic power.


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65.060.10 (Agricultural tractors and trailed vehicles)

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Document Number

ISO 789-2:1993

Revision Level




Publication Date

Aug. 15, 1993

Committee Number

ISO TC 23/SC 2