TM 9-2320-272-10
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).
2-153
