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TM 9-2320-270-10
COUPLING AND UNCOUPLING – CONTINUED
17.
18.
Do semitrailer PMCS, giving special attention to tires, brakes, and lights.
Be sure AIR PRESSure gage (1) shows at least 80 psi (552 kPa) before putting M911
Truck Tractor in motion.
Uncoupling
1. Apply PARKING BRAKE (2). This will keep the M911 Truck Tractor from running out
from under semitrailer when uncoupled.
2. Pull TRAILER AIR SUPPLY control (3) to OUT position.
3. Disconnect tractor-to-trailer air hose gladhands (4) and (5) from semitrailer and electrical
cable (6) from M911 Truck Tractor and semitrailer. Secure air hoses (4) and (5) to center
of harness holder, and stow electrical cable (6) in stowage compartment.
4. Lower semitrailer landing gear.
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