All persons not involved in coupling/uncoupling operation must stand clear
of prime mover and towing device to prevent serious injury or death.
To prevent damage to the equipment, uncoupling should be done by two
people, the first person in the prime mover cab and the second acting as
a ground guide.
1. Set prime mover parking brake.
2. Unhook gladhands (1) and 24-volt NATO slave cable (2).
Figure 65. Gladhands
Figure 66. NATO Slave Cable