TM 10-6640-239-13
2-34
Table 2-12. Operator Preventive Maintenance Checks and Services (PMCS) CONT
NOTE
If equipment must be kept in continuous operation, only do procedures that can be
performed without disturbing operation. Make the complete checks and services when
equipment can be shut down.
BE - Before
AF After
MO Monthly
DU- During
WE Weekly
Interval
Item No.
B
E
D
U
A
F
W
E
M
O
Item to Inspect
Procedures
Not Fully Mission
Capable If:
14
b. Inspect valves.
Air leaks or defective valves.
15
a. Inspect mounting.
Mounting bolts loose or missing.
b. Inspect crankcase oil level.
Low oil level.
c. Inspect drive belts. Check
for proper drivebelt
deflection (3/4 inches under
moderate thumb pressure).
Drive belts are loose or cracked
or excessively worn.
d. Check for rattles, knocks,
squeaks, or hums that may
indicate trouble in air
compressor or motor.
Vibration or unusual noise
occurs.
Vacuum Pump
e. Inspect motor for indication
of overheating and smoke
damage.
Motor overheats or emits smoke.
16
a.
Inspect mounting.
Loose or missing mounting
bolts.
b.
Inspect pump and motor.
Pump or motor overheats or
unusual noise occurs.
Water Supply
Pump
c.
Check pump at shaft seal.
Shaft seal leaks.
17
a.
Inspect all outlet valves.
Defective valves.
Class III leaks detected.
Water Supply
Valves, and
Piping
b.
Inspect water piping.
Class III leaks detected.
18
Surge Tank
Inspect for leaks.
Class III leaks detected.
19
a.
Inspect mounting.
Loose or missing bolts.
Water Tank and
drain.
b.
Inspect for leaks.
Class III leaks detected.
20
a.
Inspect mounting.
Loose or missing mounting
bolts.
b.
Inspect for leaks.
Class III leaks detected.
Water Chiller
c.
Inspect for proper operation. Water is not chilled.
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