TM 9-4120-401-14
Unit Preventive Maintenance Checks and Services (PMCS)
Table 4-1.
Quarterly Schedule - continued
Paragraph
Procedures
Item to be
Item
Reference
Inspected/Serviced
Number
To avoid injury, compressed air used for
cleaning purposes must not exceed 30 psi
(2.1 kg/cm2).
4-49
a. Blow accumulated dust and dirt out of air passages in
Condenser Coil
13
condenser coil (17) using compressed air. Blow from
inside for reverse airflow direction.
b. Inspect coil (17) for obvious damage and all mounting
hardware for tightness and security. Straighten any bent
fins.
4-46
a. Wipe dust and dirt from fan (18) and motor (19) and all
Condenser Fan and Motor
14
other components and surfaces in the area.
b. Inspect fan (18) for damage or bent blades, motor (19) for
signs of overheating, and all mounting hardware for
tightness and security.
c. Inspect wiring harness (20) for damage or chafing and all
electrical connections for tightness.
a. Wipe dust or dirt from the compressor (21) canister and
15
Compressor
remaining components and surfaces in the lower section
of the cabinet.
b. lnspect compressor crankcase heater element for signs
of overheating or deterioration.
c. Inspect wiring harness for damage or chafing and all
electrical connections for tightness.
d. Check all mounting hardware for damage or chafing.
4-22
