Figure 3-6. Evaporator fan and inlet ring, removal and installation.

Figure 3-6. Evaporator fan and inlet ring, removal and installation.

cloth to remove any small scratches or burrs.

(2) Inspect the fan for bent fins or other

Apply a light coat of thin oil to shaft.

damage. Inspect the inlet ring for damage.

(3) Replace damaged components.

(2) Position fan on shaft and push inward,

d. Installation. Install the evaporator fan and

being careful to maintain the fan 90 to shaft.

inlet ring by reversing the order of removal.

Fan should be mounted with a minimum of effort.

If the fan resists the pushing motion, apply cro-

3-19. Condenser Fan

cus cloth to the motor shaft again until the fan

a. General. The condenser fan is of the air foil

mounts properly.

type to reduce noise and vibration. A baffle is

(3) Replace the condenser grill.

mounted directly behind the fan.

b. Removal.

3-20. Damper Door Controls

(1) Remove the air intakegrill (para 3-15).

The damper door controls consists of a chain

(2) Refer to figure 3-7 and remove the con-

and spring assembly and will require little main-

denser fan.

tenance when properly handled. Should mainte-

Note. The condenser fan may be difficult to re-

nance become necessary, remove the intake grill

move from the shaft if it has been in place for an ex-

(para 3-15) and disconnect the chain from the

tended period of time. If the fan will not pull off with

minimum effort, utilize a suitable puller. Place the pulling

spring and replace damaged components.

ends carefully so as not to damage the fan blades.

3-21. Electrical Wiring System

c. Cleaning and Inspection.

(1) Clean the condenser fan with an ap-

The electrical wiring system (fig. 1-3 and 1-4)

proved solvent.

should be inspected frequently to avoid damage

(2) Inspect the fan for damage. Check the

or failure during operation. Any wiring showing

balance weights for secureness, tighten loose

signs of damage or wear should be replaced im-

weights. Inspect motor shaft for gouging.

mediately. When replacing wiring, be sure that

(3) Replace damaged fan.

the identical type wire is used. Consult wiring di-

d. Installation.

agram frequently during any electrical mainte-

(1) Clean the motor shaft and use crocus

nance. Solder all terminal connections.

3-9