INTERVAL
TM 5-4320-302-14
Table 2-2. Operator/Crew Preventive Maintenance Checks and Services-Continued
B BEFORE OPERATION
A AFTER OPERATION
M MONTHLY
D DURING OPERATION
W WEEKLY
B
D
A
W
M
8
Cooling Air Ducting.
Accumulated
dirt cannot be
Rotate latch handle of fasteners down. Lift air cowling
removed, cool-
up, unhook from cover plate, and set aside.
ing blower is
binding or rub-
bing, or tripping
of thermoswitch
indicates over-
heat condition.
Check that cover and stay plates are tight.
Check that thermoswitch is positioned as shown.
Check lead is firmly connected to thermoswitch.
Check lead for abrasion, cracking, or damage.
Check cylinder cooling fins for damage, or dirt.
Remove dirt using a dry, stiff-bristle brush.
Check bottom roller of cooling air blower for rubbing,
binding, obstruction, or dirt. Remove dirt using a dry,
stiff-bristle brush.
Check for damaged or deformed fan blades.
Check lube oil cooler cooling fins for damage, dirt, or
obstructions. Remove dirt using a dry, soft-bristle
brush.
Check lube oil line for leakage, abrasion, cracking,
or damage.
ITEM
NO.
ITEM TO BE INSPECTED
PROCEDURE
EQUIPMENT IS NOT
READY/AVAILABLE IF:
2-17
