Table 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) QUARTERLY SCHEDULE (cont)

TM 5-4120-393-14

Table 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) QUARTERLY SCHEDULE (cont)

Item

Item To Be

Procedures

No.

Inspected/Serviced

e. Inspect wiring harnesses which route through the area

for damage or chafing.

Generally inspect refrigeration system components for

condition.

Control Panel

a. Check operation of controls for stiffness or binding.

b. Inspect wiring harness for damage or chafing, and all

electrical connections for tightness.

c. Check capillary to temperature sensing bulb for

damage or kinking.

d. Check all mounting hardware for tightness and security.

Compressor

a. Wipe or vacuum all dust or dirt from the compressor

canister, and all other remaining components and

surfaces in the lower section of the cabinet.

b. Inspect the compressor crankcase heating elements

and associated thermostats for condition.

c. Inspect wiring harness for damage or chafing, and all

electrical connections for tightness.

d. Check all compressor mounting hardware for tightness

and security.

e. Check all remaining refrigeration system components

in the lower section of the cabinet for general condition.

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