TM 9-4120-411-14
5.12 AIR HANDLING ASSEMBLY REPLACEMENT - CONTINUED.
(11) Tag four wire leads at inside blower motor connection points then cut off and discard three crimp nuts (11)
to disconnect three leads. Remove screw (12), lock washer (13), and flat washer (14) to disconnect the
fourth, ground, lead. Retain lock washer for use during installation.
(12) Remove locking nut (15) then pull cable (16) with strain relief fitting (17) out of inside blower motor. Install
locking nut to retain sealing washer (18).
(13) Remove two locking nuts (19) then pull cables (20) with strain relief fittings (21) out. Install locking nuts to
retain sealing washers (22).
(15) Remove nut (23), lock washer (24), and bolt (25). Discard lock washer.
(16) Remove bolt (26), lock washer (27), flat washer (28 ), and clamp (29). Discard lock washer.
(17) Remove two screws (30), lock washers (31), flat washers (32), and bracket (33). Discard lock washers.
(18) Remove two nuts (34), lock washers (35), screws (36), and clamps (37). Discard lock washers.
(19) Remove four nuts (38), lock washers (39), screws (40), and bracket (41). Discard lock washers.
CAUTION
Check valves can be damaged by high heat. Be sure to wrap the valve body with
wet rags as instructed to avoid damage to internal components when de-brazing.
(21) Purge the refrigerant system per paragraph 5.5 then de-braze the air handling assembly (42) connections
(22) Carefully lift the air handling assembly (42) out of the FDECU using an appropriate lifting device and sling.
(1) Carefully lower the air handling assembly (42) into the FDECU using an appropriate lifting device and sling.
CAUTION
Check valves can be damaged by high heat. Be sure to wrap the valve body with
wet rags as instructed to avoid damage to internal components when brazing.
(2) Assemble air handling assembly (42) fittings onto tubing ends. Purge the refrigerant system per paragraph
(5) Install bracket (41) and secure with four screws (40), new lock washers (39), and four nuts (38).
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