Table 4-1. Unit Preventive Maintenance Checks and Services
Item to be
Not Fully Mission
Before performing any maintenance that requires climbing on or
under trailer, make sure that trailer handbrakes are set, trailer front
landing leg/support leg is lowered, and leveling-support jack is
lowered. Injury to personnel could result from trailer suddenly
rolling or tipping.
Inspect power cables for worn, frayed,
Power cable is
or cracked insulation, loose terminal
lugs, and loose connections. Tighten as
Inspect switch box assembly (refer to
Inspect for wear, damage, and loose
attaching hardware. Torque to 315-347
lb.-ft. (427-470 N.m).
Inspect for cracks and deformation
Mounting rail is
cracked or deformed.
a. Inspect for broken seal and damage
b. Weigh to determine whether charge
is sufficient. Weight is 13 pounds
when fully charged. If weight is 12.5
pounds or less, send to specialized
activity for recharging.
4-12 Change 2