TM9-4120-400-14
4-41.
REMOVAL
1. Remove two screws (1), lock washers (2), and clamps (3) and remove the TEMPERATURE SELECTOR
remote sensing bulb (4) from top of fan housing.
2. Remove insulation (5).
3. Remove two screws (6), Iock washers (7), and fan bracket (8).
4. Remove four cap screws (9) and lock washers (10) holding four corners of base to resilient mounts.
5. If connector J3 interferes with assembly removal, loosen nut and push connector up out of the way.
6. Lift fan, motor, and base assembly out of unit.
DISASSEMBLY
1.
Remove two screws (11), lock washers (12), and fan strap (13).
Remove eight self-locking nuts (14) flat washers (15), fan inlet (16), and centrifugal housing (17).
2.
Remove four cap screws (18), lock washers (19), and flat washers (20) and pull motor (21), shaft
3.
extension (22), and fan impeller (23) out of housing (24).
Loosen setscrew (25) in shaft extension (22) and pull from motor (21). Remove centrifugal housing (17).
4.
Loosen set screw (26) in fan impeller (23) and pull from shaft extension (22).
5.
Remove two screws (27), flat washers (28), and fan strap (29).
6.
7.
Remove four screws (30), self-locking nuts (31), fan flanges (32 and 33), and fan housing (34) from base (35).
8.
Check condition of resilient mounts (36). If damage is detected remove defective mount by lifting and
blocking air conditioner and removing two self-locking nuts (37), flat washers (38), and screws (39) from
bottom side of cabinet. Remove resilient mounts
NOTE
Be sure that correct part number resilient mounts are ordered and installed properly. The
two mounts on the motor end are different than those on the fan end.
REPLACEMENT
Replace any defective components found during inspection and test.
ASSEMBLY
If resilient mounts (36) were removed, Attach new mounts (36) to unit with two screws (39), flat washers (38),
1.
and self locking nuts (37).
Align pins in fan flanges (32 and 33) with holes in fan housing (34) and attach fan flanges to the base (35) with
2.
four screws (30) and self-locking nuts (31).
Attach fan strap (29) with two screws (27) and flat washers (28).
3.
4-101