This standard specifies the type, size and technical requirements of the front power output shaft of the tractor. This standard applies to agricultural wheeled tractors.
GB/T 10917-1989 history
2003GB/T 10916-2003 Agricultural wheeled tractors--Front-mounted equipment--Part 1: Power take-off and three-point linkage
1989GB/T 10917-1989 Front-mounted power take-off for agricultural wheeled tractors
GB/T 10917-1989 was changed to GB/T 10916-2003 Agricultural wheeled tractors--Front-mounted equipment--Part 1: Power take-off and three-point linkage.