Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS) (Cont).
Q - Quarterly
S - Semiannual
ITEM TO BE
Check leaf springs for cracks, breaks, or a sagging condition.
Check the axle for loose bolts and nuts. Torque loose bolts or
nuts to 300 lb.-ft. (407 N-m).
BRAKE AIR LINES
Check air lines and fittings for damage and leaks.
Check manhole cover and gasket for cracks.
Check for wear, damage, and proper tension. Proper tension is
3/8 in. (10 mm) deflection. Adjust as required (see para-
a. Change crankcase oil and filter (see paragraph 4-41).
b. Change fuel filter element (see paragraph 4-42).
c. Inspect flywheel for cracks or damage
a. Check for cracks in the battery casing.
b. Check electrolyte specific gravity in each cell (see paragraph
4-20). If any cell reads less than 1.150, replace the battery
(see paragraph 4-20).
BRAKE DRUM AND
Overheated brakedrums and hubs can cause severe
burns to personnel when touched
Immediately after road test, cautiously feel brakedrums and
hubs. An overheated wheel hub or brakedrum indicates defec-
tive or improperly adjusted wheel bearings or dragging brakes.
An abnormally cool condition indicates an inoperative brake.