TM9-4120-401-14
4-43.
d. Replace.
(1)
Remove 12 screws (4), flat washers (5), and two bell inlets (6).
(2)
Remove six screws (7) from front fan housings (8) and (9). Carefully rermove front fan housings.
Two people are required to lift unit. Personal injury can result.
Do not lay unit on side to access bottom, compressor damage can result from oil
being displaced.
(3) Carefully lift and block air conditioner to access bottom of unit.
(4) Remove screw (10), self-locking nut (11), and clamp (12). Cut tiedown straps on motor (3) wiring
harnesses and carefully remove thermal sensor (RT1). Disconnect P8 and P9 motor connectors.
(5) Fan motor assembly.
(a) Remove four screws (13) and flat washers (14). Carefully remove fan motor assembly and two pads
(15). Remove four screws (16) and support (17). Remove four grommets (18) and sleeve bushings
(19) from support.
(b) Loosen two setscrews (20) and remove two fan impellers (1) and (2) from motor (3) shaft.
(c) Install two fan impellers (1) and (2) onto motor (3) shaft and secure with two setscrews (20).
(d) Install four grommets (18) and sleeve bushings (19) into support (17) motor mount holes. Install
support (17) into unit and secure using four screws (16) .Carefully install fan motor assembly and two
pads (15) into unit and secure using four screws (13) and flat washers (14).
(6) Rear fan housings (21 ) and (22).
Remove fan motor assernbly. (See (5) above.)
(a)
(b) Remove four screws (23) and two filler bars (24).
Remove four screws (25), two filler blocks (26), and rear fan housings (21 ) and (22).
(c)
Install rear fan housings (21) and (22) and two filler blocks (26). Secure with four screws (25).
(d)
Install two filler bars (24) and secure with four screws (23).
(e)
(f) Install fan motor assembly. (See (5) above,)
Conneot P8 and P9 motor connectors. Carefully mute thermal sensor (RT1) with wiring harness.
(7)
Install clamp (12) and secure with screw (10) and self-locking nut (11). Secure harness in place with
three tiedown straps.
(8) Carefully install front fan housings (8) and (9) and secure with six screws (7).
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