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TM 9-4110-257-14
Table 4-1. Unit Preventive Maintenance Checks and Services for Model F10000RD - Continued
Location
Item
Item to
Not Fully Mission
No.
Interval
Check/
Procedure
Capable if:
Service
Refrigeration
Unit Interior
32
Semi-
Temperature
a.
Inspect for frayed or broken wire leads. If
Wire lead frayed or
Annually
Switch
damaged, repair or replace as needed
broken. Temperature
(para 4-36).
switch loose on tubing.
b.
Check that the switch is in contact with the
tubing. Tighten if loose.
33
Semi-
Heat
Inspect the heat exchanger for dents or evidence
Heat exchanger is dented
Annually
Exchanger
of refrigerant leak. If damaged or evidence of
or evidence of leak is
leaking found, notify direct support maintenance
found.
to replace it.
34
Semi-
Expansion
a.
Inspect the expansion valve for evidence of
Evidence of leak is found,
Annually
Valve
refrigerant leak. If evidence of leak is found,
sensing bulb is loose on
notify direct support maintenance to replace
tubing, or capillary line is
it.
kinked or broken.
b.
Inspect the sensing bulb capillary line for
cracks, kinks, or breaks. If damaged, notify
direct support maintenance to replace the
expansion valve.
c.
Check that the sensing bulb mounting
hardware is secure and the bulb is in contact
with the tubing. Tighten the mounting
hardware if loose.
4-28
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