TM-9-2320-272-10
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; OPERATOR'S MANUAL
SEPTEMBER 2004
CHANGE 2
TM-9-2320-272-10 - Page 254 of 481
TM 9-2320-272-10
2-153
2-26. OPERATION OF TRACTOR AND FIFTH WHEEL (Contd)
.
WARNING
.
Airbrake hose shutoff valves must be open at all times during
normal operation of tractor truck and trailer, and brakes should
be functional. Failure to follow these precautions may cause
injury or death to personnel.
(8)
Open shutoff valves (7) by placing handles (6) in alignment with
valves (7).
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