TM 9-4120-399-14
Table 4-2. Unit Preventive Maintenance Checks and Services (PMCS).
Interval
Item To Be
Item
Procedure
Inspected
No.
M
Q
A
during unit operation.
Remove intake (return air) guard per
Evaporator Coil
23
Remove air conditioning filter per para.
Check for loose or missing mounting
hardware.
Remove debris from intake side of
Compressor
24
mounting hardware.
Check for loose, cracked, or burned wire
leads and connectors.
Check for refrigerant leaks around
tubing connections.
when unit is in operation.
Condenser Coil
25
coil mounting hardware.
Check for refrigerant leaks.
Remove any debris from condenser
coil fins.
Condenser Guard
26
missing hardware.
Check for clogged or dirty screen.
4-23