TM 9-4520-258-14
4-39. DAMPER ASSEMBLY.
This task consists of:
a. Removal
b. Disassembly
c. Repair
d. Assembly
e. Installation
INITIAL SETUP:
Tools:
Material/Parts:
Tool Kit, General Mechanics (Item 1, App B)
Gasket (Item 66, App F)
Blind Riveter (Item 5, App B)
Gasket (Item 65, App F)
Drill (Item 2, App B)
Rivet (Item 7, App H)
Drill Bits (Item 2, App B)
Lockwasher (Item 8, App H)
Gasket Punch (Item 2, App B)
Gasket (Item 68, App F)
Shears (Item 2, App B)
Gasket (Item 67, App F)
Chain (Item 69, App F)
Equipment Condition:
Unit disconnected from power source (para 2-8)
NOTE
Disassemble only to the level required to make repairs.
a.
Removal (Refer to Figure 4-79)
(1) Remove clip (1) and pendant (2) from chain (3).
(2) Remove sixteen screws (4), lockwashers (5), flat washers (6) and two duct cover stays (7) from grill (8).
Discard lockwashers.
(3) Feed chain (3) through grill (8) while removing grill from frame (9).
(4) Remove damper assembly (10).
b
Disassembly (Refer to Figure 4-79)
(1) Remove six lock nuts (11) and six flat washers (12) from mounting plate (13). Remove mounting plate (13)
and door (14).
(2) Drill out rivet (15) and remove chain (3).
(3) Remove clip (16) from chain (3).
(4) Remove two gaskets (17) and two gaskets (18). Discard gaskets.
(5) Remove two gaskets (19) and two gaskets (20). Discard gaskets.
4-186
