IS 12606 : 1989 Transport tractors and trailers - static load on ball couplings

1 Scope

1.1 This standard lays down the limiting values of static loadapplied vertically by transport tractors and trailers on ballcoupling fitted to the towing vehicles.

1.2 This standard applies to transport tractors and trailers forwhich the maximum authorized weight does not exceed 3.5 tonnes.

1.3 This standard does not apply to unbraked trailers andtwin-axle trailers.

2 Reference

IS 12351 : 1988Specification for coupling ball for caravans and lighttrailers