TM 9-4120-370-14
TO 35E9-229-1
Table 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - (cont.)
Procedures
Item
Item To Be
No.
Inspected/Serviced
Heating Elements
a. Wipe or vacuum any remaining dust or dirt from the
5
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.
a. Wipe or vacuum all dust or dirt from the fans, motor, and
6
Evaporator Fans and Motors
all other components and surfaces in the area.
b. Inspect the fans for damage or bent blades, the motor
for signs of overheating, and all mounting hardware for
tightness and security.
c. Check that fans spin freely.
d. Inspect wiring harness for damage or chafing and all
electrical connections for tightness.
e. Generally inspect refrigeration system components in the
upper section for condition.
7
a. Check operation of louvers for stiffness or binding.
Conditioned Air Intake Grille
b. Remove and place aside the front fresh air damper con-
trol knob.
c. Remove, clean, repair, and lubricate grille as necessary.:
