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TM 9-4120-389-14
(7)
Remove damper door actuator and nut from actuator mounting bracket.
(8)
Unscrew nut from damper door actuator.
c.
Inspection
(1)
Check all components for loose or missing hardware. Replace as needed.
(2)
Check damper door for loose or missing gasket. Repair as needed.
(3)
Check actuator bracket and door bracket for damaged and/or missing rivets. Repair as
needed.
(4)
Check cable for damage. Replace as needed.
(5)
Check damper door actuator and nut for damage. Replace as needed.
d.
Service
(1)
Brush off loose dirt or foreign matter
(2)
Apply thin layer of grease (Item 25, Appendix E) to inner cable and actuator threads.
e.
Assembly
(1)
Secure the door bracket to the casing bottom with two screws.
2)
Install one cotter pin in hole in shaft.
(3)
Thread one washer on shaft.
(4)
Thread shaft through hole in one end of damper door until approximately one-quarter inch of
shaft is exposed.
(5)
Align door bracket to damper door.
(6)
Thread shaft through two holes in doorbracket and damper door.
(7)
Back shaft up until shaft end is flush with door bracket.
(8)
Match inside diameter of washer to shaft outside diameter.
(9)
Install washer on shaft end.
(10)
Install cotter pin.
(11)
Install one mounting clamp on cable.
(12)
Thread cable through casing.
(13)
Install cable "eye" to damper door, using screw and locknut.
4-112
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