TM 9-4120-402-14
Table 4-2. Unit Preventive Maintenance Checks and Services (PMCS)
Quarterly Schedule - continued
Item
Item to be
Procedures
Paragraph
Number
Inspected/Serviced
Reference
5
a.
Wipe or vacuum any remaining dust or dirt from the
heating elements (12), the treater 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 heater elements (12) 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 (13) and all
other components and surfaces in the area.
b.
Inspect the fan (13) for damage or bent blades and all
mounting hardware for tightness and security.
c.
Check that fan (13) spins freely.
d.
Generally inspect refrigeration system components in the
upper section for condition.
4-26