TM 5-4310-452-14
2-16. UNCOUPLING UNIT FROM TOWING VEHICLE (Con't).
c.
Disconnect electrical power cable (5) and place in holder (7).
d.
Disconnect service and emergency brake air lines (4) from towing vehicle, and place in dummy couplers (9).
Pull air tank drain cable (6) to discharge water from air tank.
e.
Disconnect safety chains (10) from towing vehicle and hook to front crossmember hook (8).
f.
Remove locking pin (11) and swing
down front leveling jack (12). Insert locking pin
and lock front leveling jack in down position.
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