ISO/TC 23/SC 4/WG 8 - Power take-off (PTO) and drawbar

This document specifies the dimensional requirements and location for category 0, 1, 2, 3, 4 and 5 drawbars mounted on the rear of agricultural tractors.

This document provides a list of the recommended mechanical connection combination standards for towing and towed agricultural vehicles.

This document specifies the dimensional requirements and location for a ball coupling device of 80 mm nominal diameter, whose male part is fitted to an agricultural towing vehicle and female part is fitted to a towed, non-balanced vehicle which provides mechanical connection between the two vehicles. It defines vertical loading for different positions. This document specifies a ball coupling device with either a horizontal adjustable version, or a close position version.

This document specifies dimensions and requirements for three-point linkage in association with a power lift for the attachment of implements or equipment to the front of agricultural tractors. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE In this case, ISO 730 applies.

This document specifies safety requirements for, and clearance zones around, front-mounted power take-offs (PTO) on agricultural tractors. NOTE 1 Further specifications for front-mounted power take-offs are given in ISO 8759-3. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE 2 In this case, ISO 500 (all parts) apply.

This document gives general specification and location requirements for front-mounted power take-offs (PTO) on agricultural tractors. NOTE 1 Further specifications for front-mounted power take-offs are given in ISO 8759-1. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE 2 In this case, ISO 500 (all parts) apply.

ISO 500-1:2014 gives general specifications, including speeds, safety requirements, the dimensions for master shield, and clearance zones for rear-mounted power take-offs (PTOs) of types 1, 2, 3, and 4 on agricultural tractors with a track setting of more than 1 150 mm (those with track setting width of 1 150 mm or less are covered in ISO 500-2).

ISO 500-3:2014 specifies the manufacturing requirements for, and the location of, rear-mounted power take-offs (PTOs) of types 1, 2, 3, and 4 on agricultural tractors.

ISO 11001-3:2009 specifies the essential dimensions for the attachment of three-point hitch implements to agricultural wheeled tractors equipped with a three-point linkage according to ISO 730 or ISO 8759-1 and a link coupler.

ISO 730:2009 specifies the dimensions and requirements of the three-point linkage for the attachment of implements or equipment to the rear of agricultural wheeled tractors.

ISO 2332:2009 specifies the clearance zone to be maintained around an implement for attachment to the three-point linkage of an agricultural wheeled tractor. It is applicable to the connection of agricultural implements to three-point linkages complying with ISO 730, and also where implement couplers complying with ISO 11001 are used.