TM 9-4120-405-13&P
4-32. FILTER, RETURN AIR (Figure 4-23).
This Task Covers:
a. Replace
b. Repair
Initial Setup:
Tools Required
Tool kit, general mechanics
Riveter, blind hand
Equipment Condition
Air conditioner off
REMOVAL.
1. Remove return duct adapter insulation blanket.
2. Unclasp latch (1) on side access panel of return duct adapt er and slide air filter (2) out.
NOTE
Removal of return duct may be required to manually disengage air filter from the
return duct adapter port if the filter sticks.
REPAIR.
Repair is limited to replacement of the rivet and strap.
INSTALLATION.
1. Insert return air filter (2) in the direction of the arrow into the side access panel on return duct adapter. Secure
latch (1)
2. Install return duct adapter insulation blanket.
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