TM 5-6640-212-14
Table 3-1. Preventive Maintenance Checks and Services (PMCS) - Continued
NOTE: Within designated interval, these checks are to be performed in the order listed.
B - Before
A - After
M - Monthly
D - During
M - Monthly
C - Combat Operability Check
Equipment is
ITEM
INTERVAL
ITEM TO BE
NOT READY/
NO.
B
D
AW
M
INSPECTED
PROCEDURE
AVAILABLE if:
Air
Observe drive belts for slippage
or binding caused by excessive
looseness or tightness of belt.
Proper drivebelt deflection
should be 3/4 inches under
moderate thumb pressure.
Monthly or more often if
required, remove valve caps
on the cylinder heads and thor-
oughly clean inlet and discharge
valves and their seats.
3
Water Pump
Check piping for leaks or
looseness. Make sure outlet
valves are closed.
Make sure tank contains suf-
ficient water.
Inspect pump and motor for
unusual noises or heat that
could indicate malfunction.
Make sure pump does not leak
at shaft seal.
Check water piping in utility
and laboratory compartments
for signs of leakage.
Make sure all outlet valves
deliver full flow when open
and do not leak when closed.
3-4