TM9-4120-398--14
a. Repair
This task covers
b. Replacement
INITIAL SETUP
Tools
Equipment Condition
Tool kit refrigeration SVC
Power OFF
Riveter, blind, hand
General Safety Instructions
Materials/Parts
WARNINGS
Voltages used can kill, Always
Gasket (TM9-4120-398-24P)
disconnect power cord to air conditioner
before performing any internal
maintenance. Shutting unit off at its
control panel does not disconnect
unit power.
Dry cleaning solvent (Federal Specification
P-D-680) used to clean parts is potentially
dangerous to personnel and property.
Do not use near open flame or excessive heat.
Flash point of solvent is 100F to 138 F
(38 C to 59 C).
a. Removal.
(1) Remove the six rivets (1) holding the fresh air damper assembly (2) to the frame.
(2) Remove the fresh air damper assembly (2) from the frame.
b. Repair.
(1) To repair closing chain:
(a) Remove pendant (3) from end of chain (4).
(b) Remove screw (5), two washers (6), lockwasher (7), and nut (8) securing chain (4) to darnper door (9).
(c) Replace damaged puts.