Uncoupling the gooseneck from the prime mover shall be conducted with the trailer lowered to the
ground or evenly resting on wooden blocks.
All persons not involved in uncoupling operation must stand clear of prime mover
and trailer to prevent serious injury.
To prevent damage to the equipment the uncoupling procedure should be done by
two people. One person should be in the prime mover cab and the second acting
as a ground guide/observer.
Disconnect the 12 - volt and 24 - volt electrical cables from the prime mover to the
gooseneck electrical connectors (3) at the front of the gooseneck.
Disconnect the service (blue) and emergency (red) air lines from the prime mover to the
gooseneck gladhands (2).