Truck must be on level ground and wheels must be chocked before parking brake is released.
Otherwise, truck may roll and cause injury to personnel.
Wear safety goggles when performing leakage tests on valves. Failure to do so may result in serious
eye injury due to high pressure air.
(1) Start engine and build pressure to
125 ±4 psi (861 ±28 kPa).
(2) Turn OFF ENGINE switch.
(3) Jack-up two front Axles until wheels
are off ground (TM 9-2320-364-10).
(4) Shift transfer case to N (neutral).
(5) Release PARKING BRAKE.
(6) Turn all wheels by hand.
(a) If only one wheel fails to turn,
perform Step (7) below and go to
Step 4 of this Fault.
(b) If all wheels fail to turn, perform
Step (7) below and go to Step 2 of
(7) Lower wheels to ground.