This part of GB/T l9408 stipulates the size requirements of the traction hook on the agricultural tractor mounted on the trailer equipped with the hitch ring specified in IS0 20019, the unbalanced trailer and the agricultural implement, so as to ensure the mutual mechanical connection of the agricultural tractor. change sex. This standard applies to tow hooks subjected to a vertical static load not exceeding 30 kN.
GB/T 19408.1-2003 history
2003GB/T 19408.1-2003 Agricultural vehicles-Mechanical connections between towed and towing vehicles-Part 1:Dimensions of hitch-hooks