TM 9-4110-258-13
Table 2-1. Operator Preventive Maintenance Checks and Services - Continued
Location
Item
Interval
Item to
Procedure
Not Fully Mission
No.
Check/
Capable If:
Service
Refrigeration
Unit Interior
WARNING
High voltage and exposed rotating
parts are contained in the refrigeration
unit. Personal injury can result if power
is connected with doors open.
12
After
Fan
Inspect condenser fan for cracks and tears.
Fan is cracked, torn, or
Inspect for loose connection to fan drive shaft. If
loose.
damaged or loose, notify unit maintenance to
tighten or replace it as necessary.
13
After
V-Belt
Inspect the V-belt for frayed edges, cracks,
V-belt is frayed, cracked,
glazing, or hard brittle condition. Inspect for
glazed, or hard and
excessive looseness or slippage. If damaged or
brittle. V-belt is
loose, notify unit maintenance to tighten or
excessively loose or
replace it as necessary.
slipping.
14
After
Flange
Inspect flange bearings for loose or missing
Flange bearing mounts are
mounting hardware and looseness of fan drive
loose or fan drive shaft is
shaft in bearing. If loose, notify unit
loose in bearing.
maintenance to tighten or replace it as
necessary.
15
After
Pulleys
Inspect pulleys for cracks, chips, or warpage.
Pulleys are cracked,
Inspect for secure mounting to shaft. If damaged
chipped, warped, or loose
or loose, notify unit maintenance to tighten or
on shaft.
replace it as necessary.
16
After
Fan Drive
Inspect fan drive shaft for cracks, chips, or
Fan drive shaft is cracked,
Shaft
warpage. If damaged, notify unit maintenance
chipped, or warped.
to replace it necessary.
Refrigeration
Unit Exterior
17
Weekly
Pressure Gauges
Inspect the pressure gauges for cracked or
missing lens and loose or missing mounting
hardware. If damaged or loose, notify
direct support maintenance to tighten or
replace it as necessary.
2-11
