TM 9-4120-371-14
TABLE 4-1. UNIT PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS) (cont.)
Item
Item To Be
Procedures
No.
Inspected/Serviced
2
Conditioned Air
a. Check operation of louvers for stiffness or binding.
Discharge Grille
b. Remove, clean, inspect, repair, and lubricate grille as
necessary.
Mist Eliminator
3
a. Remove screws, flat washers, and packing with retainers
from upper portion of fabric cover to gain access to top panel
b. Remove, clean, and inspect the top panel.
c. Remove, clean, inspect, and service the mist eliminator.
d. Replace the mist eliminator if it is damaged.
4
b. Inspect coil for obvious damage and all mounting hardware
for tightness and security.
Heating Elements
5
a. Wipe or vacuum any remaining dust or dirt from the
heating elements, the heater thermostat, and all other
components and surfaces in the area.
NOTE
Use a clean, dry cloth (or one slightly moistened
with water) for all wiping operations. NEVER use an
oily or greasy cloth. Any oily residue left on any
surface will attract and accumulate much more dust
and dirt than dry surfaces.
b. Inspect heating elements and thermostat for obvious
damage, and all mounting hardware for tightness and
security.
c. Inspect wiring harness for damage or chafing and all
electrical connections for tightness.
6
a. Wipe or vacuum all dust or dirt from the fan and all other
components and surfaces in the area.
b. Inspect the fan for damage or bent blades and all mounting
hardware for tightness and security.
c. Check that fan spins freely.
d. Generally inspect refrigeration system components in the
upper section for condition.
4-35