Check air lines 2022, 2023, 2620 and 2075
for crimping (see schematic Fig 2-45).
(1) If there are crimps in air lines,
replace air lines (Para 12-36).
(2) If there are no crimps in air lines,
air lines are OK.
Wear safety goggles when performing leakage tests on valves. Failure to do so may result in serious
eye injury due to high pressure air.
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.