Repair Fan, Ventilating (Exhaust Fan #3) (Steering Gear Room).

TM 55-1905-223-24-17

2-30. Repair Fan, Ventilating (Exhaust Fan #3) (Steering Gear Room).

This task covers:

a. Removal,

b. Repair,

c. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's,

Circuit breaker switch OFF, power

panel locked and tagged "Out of

Tool kit, electrician's,

Service - Do Not Operate."

See TM 55-1905-223-10 for HVAC systems

Materials/Parts

operation and equipment location.

Tags, Item 1, Appendix C

Grease, Item 2, Appendix C

Ventilating fan P/N 717293-10

AC electric motor

P/N 35J788Y605

Annular ball bearing P/N 203

Bearing P/N 205

REMOVAL

WARNING

Make sure electrical power is OFF to avoid personal injury.

Tag and disconnect electrical wiring from conduit box (2, FIGURE 2-19).

Support the fan assembly and remove mounting bolt, nut, and washer assemblies (8) from bulkhead

end of the fan drum (7).

Remove the fan assembly.

REPAIR

Repair consists of replacing the electric motor or the motor bearings.

Removal of motor:

(1)

Remove screen (3) by removing bolts (4), washers (5) and nuts (6).

2-83