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TM5-4120-376-14
4-18. VENTILATION DAMPER AND ACTUATOR/Inspect, Service, Replace (Cont)
LOCATION/ITEM
Removal:
8. Remove two speed nuts (19) two screws (21) two lock washers (22) and damper door cable
housing bracket (20).
9. Loosen set screw (23) from damper actuator (24) and pull inner damper door cable (25)
from damper door cable housing (15).
10. Remove two speed nuts (26) from the bottom of damper door actuator bracket (27) and
remove damper door cable housing and remove bottom grommet (28) from unit.
11. Remove one screw (29) one lock washer (30) and one screw (32) from top damper door
actuator bracket (31).
12. Remove one screw (33) one lock washer (34) and one flat nut (35) from top damper door
actuator bracket (31).
13. Slide damper door actuator bracket (31) off damper door actuator (24).
14. Remove bottom damper door actuator bracket (27).
15. Remove knob (36) from damper door actuator (24) and from unit.
Inspection:
Inspect for damage and replace if necessary.
Service:
1.
2.
3.
WARNING
Dry cleaning solvent, P-D-680 or P-S-661, 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 100°F (38°C).
Brush off loose dirt or foreign matter.
Wipe damper door with a cloth dampened with dry cleaning solvent (Table D-1, Item 3).
Apply a thin layer of grease (Table D-1, Item 17) to the inner cable.
4-74
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