TM 5-4320-275-13 & P
Table 4-2. Organizational Preventive Maintenance Checks and Services - Continued
M - Monthly
Q - Quarterly
S - Semiannually
Interval
Item
Item to be
No.
M
Q
S
Inspected
Procedures
9
Engine screws.
Check that cap
screws holding
engine to engine
mount are tight.
10
Frame assembly.
Check for cracks or broken welds.
11
Pump assembly.
Check inlet and outlet pipe nipples for leaks, cracks, or
damage. Replace any damaged pipe nipple.
12
Check valves.
Start the engine and listen to the operation of the check
valves. Check valves must open and close during normal opera-
tion. If check valves do not open and close, check for an
obstruction in the accumulator or the discharge port, then
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