TM 9-2330-398-10
2-14.
UNCOUPLING SEMITRAILER FROM PRIME MOVER.
WARNING
All personnel must stand clear of prime mover and semitrailer during uncoupling operation. Failure to
follow this warning may result in serious injury or death to personnel.
NOTE
If the semitrailer is to be uncoupled in mud, sand, or snow, or if the prime mover is an M931 Al or
M932A1, begin at step
1.
Otherwise, go to step 2.
1.
Center ground boards (1) beneath landing gear shoes (4).
2.
Close shut-off valves on service and emergency air lines at rear of prime mover.
NOTE
Semitrailer brakes will set automatically when service airbrake hose is uncoupled.
3.
Disconnect emergency and service air lines from emergency and service air couplings (2 and 3) on semitrailer.
4.
5.
Disconnect intervehicular cable (7) from receptacle (6) on semitrailer.
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