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TM 5-4120-393-14
4-33.
Fresh Air Damper (cont)
DISASSEMBLY
1.
Using screwdriver, remove ten screws (1) from each cover (2).
2.
Remove covers (2).
3.
If hinges (3), bracket (4), or nut plates (5) need to be removed, drill out the old rivets (6) using a drill bit slightly smaller
than the body of the rivet.
4.
If gear arm assembly (page 4-67, 18) is to be disassembled, remove three screws (21) and lock washers (22) and
separate worm wheel gear (23) from arm (24).
5.
If plates (27) are to be removed, drive screws (28) must be drilled out to remove plates (27).
4-68
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