ASSEMBLY - TM-9-4120-428-140179

TM 9-4120-428-14

0050 00

ASSEMBLY

1. If resilient mounts (36) have been removed, attach the new mounts (36) to the unit with two screws (39), flat

washers (38), and self-locking nuts (37).

2. Align pins in fan flanges (32 and 33) with holes in the fan housing (34). Attach the fan flanges to the base (35) with

four screws (30) and self-locking nuts (31).

3. Attach the fan strap (29) with two screws (27) and flat washers (28).

NOTE

The hub must be turned so that it is mounted toward the motor. The direction of the

rotation is clockwise facing the motor shafts.

4. Attach the fan impeller (23) to the shaft (22) and tighten the set screw (26).

5. Slip the shaft extension (22) and the centrifugal housing (17) onto the motor shaft (21) and tighten the set screw

(25).

6. Carefully slip the fan impeller (23) and motor assembly (21) into the housing (24).

7. Attach the motor (21) to the base (35) with four cap screws (18), lock washers (19), and self-locking nuts (14).

INSTALLATION

1. Place the fan and motor assembly in the unit and install four cap screws (9) and lock washers (10) to secure the base

(35) to the resilient mounts (36).

2. Install the fan bracket (8) with two screws (6) and lock washers (7).

3. Slip the Temperature Selector remote sensing bulb (4) into clamps (3) and secure with two screws (1) and lock

washers (2).

4. Tighten the connector J3 nut if loosened.

5. Connect the P3 motor connector.

6. Remove as much old insulation material from the unit as possible by pulling or scraping it away from the metal

surface.

WARNING

Adhesive remover is flammable and the vapors can be explosive. Repeated or prolonged

skin contact or inhalation of vapors can be toxic. Use in a well-ventilated area, wear

gloves, and keep away from sparks or open flame.

7. Soften and remove old adhesive and material residue using an adhesive remover and a stiff brush.

8. Coat the mating surfaces of metal and material with adhesive and allow both surfaces to air-dry until adhesive will

not stick to fingers.

9. Starting at an end point, carefully, but firmly, press contact points from material to metal.

NOTE

FOLLOW-ON MAINTENANCE:

Install Condensate Drain Tubing (WP 0027 00)

END OF WORK PACKAGE

0050 00-3