TM 10-6640-216-13&P
Table 4-1. Unit Preventive Maintenance Checks and Services
Q - Quarterly S - Semi-annually A - Annually B - Bi-annually
.NOTE: Within designated interval, these checks are to be performed in the order listed.
INTERVAL
ITEM TO BE INSPECTED
ITEM
PROCEDURE: CHECK FOR AND HAVE REPAIRED,
NO.
Q
S
A
B
REPLACED
FILLED OR ADJUSTED AS NEEDED
1
UTILITIES BOX
a. Check box door and gasket for correct assembly and good
condition.
b. Check water connectors for correct assembly and good condition.
c. Check breather vent for good condition.
2
ELECTRICAL SYSTEM
a. Check power cable and its connectors for damage.
b. Check emergency light for good condition. No missing or loose
fasteners. No loose electrical connections.
c. Check panelboard assembly for good condition. No damage to door.
No missing or loose fasteners. No loose electrical connections. No
broken or damage fuseholders.
d. Check explosive proof distribution box for good condition. No
damage to cover or gaskets. No missing or loose fasteners. No loose
electrical connections.
e. Check all wall switches and electrical receptacles for good condition.
No damaged covers. No missing fasteners. No loose or broken
electrical connections.
f. Check blackout microswitch for proper operation and good condition.
No missing hardware or loose electrical connections.
g. Check all air conditioner remote controls for good condition and
proper operation. No missing control knobs. No missing fasteners. No
loose electrical connectors.
3
ENVIRONMENTAL CONTROL UNITS
Perform PMCS in accordance with TM 5-4120-386-14.
4-7
