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 TM 9-4120-425-14&P
VENTILATION DAMPER DIRECT SUPPORT MAINTENANCE Continued
0065-00
CLEANING
1.
Wipe off dirt with clean lint free cloth, (Item 9, WP 0121-00).
WARNING
Clean parts in a well-ventilated area. Avoid inhalation of solvent fumes and
prolonged exposure of skin to cleaning solvent. Wash exposed skin thoroughly. Dry
cleaning solvent, P-D-680 Type III, used to clean parts is potentially dangerous to
personnel and property. Avoid repeated and prolonged skin contact. Do not use near
open flame or excessive heat. Flash point of solvent is 100F to 138F (38C to
59C).
REPAIR
1.
Straighten damper plate (21) and hinge (16) if bent or warped. Replace if necessary.
2.
Replace damaged insulation (22).
3.
Replace spring (13) if has loose tension.
4.
Replace chain (10) if too short.
5.
Replace damaged sleeving (8).
INSTALLATION
1.
After replacing defective parts, place ventilation damper into unit housing.
2.
Install two screws (1) to secure ventilation damper to side of unit housing.
3.
Install screw (2), washer (3) and nut (4) to secure spring (13) to unit housing.
4.
Install clamps (9) with two screws (5) to unit housing.
TEST
1.
Position ventilation damper actuator chain (10) to fully closed position.
2.
Shine flashlight into fresh air damper screen side of unit while looking into vent housing from compartment. Ensure
no light can be seen around edges of damper insulation seal. If fails, service or replace ventilation damper as
necessary.
3.
Install condenser fan scrolls (See WP 0062-00).
4.
Install condenser fan air discharge louver (See WP 0021-00).
5.
Install condenser fan ventilation air filter and guard (See WP 0022-00).
6.
Install condenser fan junction box assembly (See WP 0036-00).
7.
Install condenser fan top covers (See WP 0019-00).
0065-00-2
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