TM 55-2210-224-12
Table 4-1. Unit Preventive Maintenance Checks and Services (continued)
W - Weekly
M - Monthly
Q - Quarterly
Interval
Item
Item to be
No.
W
M
Q
Inspected
Procedures
30
Exhaust Muf-
Check muffler for holes, splits, or damage.
fler Assembly
31
Multiple-Unit
Check warning bell and buzzer for proper
Engine System
operation.
Warning Bell
and Engine
System Buzzer
32
Cooling System
a. Check hoses for leakage and deteriora-
Hoses and
tion.
Clamps
b. Check clamps for tightness.
33
Cooling Fan
a. Inspect fan for proper operation. Check
Belts, and
that blades are not cracked, broken,
Pulleys
or damaged.
b. Check for missing or loose mounting
hardware.
c. Check screens for damage and loose
mounting.
d. Check fan belts for loose adjustment,
wear, and deterioration.
e. Check pulleys for cracks, breaks, and
damage and for missing or loose mounting
hardware.
34
Cooling
a. Check radiators for leaks, clogging,
Radiators
and bent fins.
b. Service radiator by checking coolant
level and replenishing with a 50/50
solution of water and antifreeze.
35
Cab Seats
Check seats and cushions for wear, damage,
and Cushions
and loose mounting.
36
Armrests
Check armrests for wear, damage, and loose
mounting.
4-8
