Repair Fan, Ventilating (Supply Fan #5) (A/C and Emergency Generator Room)

TM 55-1905-223-24-17

2-27. Repair Fan, Ventilating (Supply Fan #5) (A/C and Emergency Generator Room). (FIGURE 2-17)

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."

5180700-391-1087

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

Materials/Parts

operation and equipment location.

Tag, Item 1, Appendix C

Ventilating fan P/N 71693-8-02

AC electric motor

P/N 34N 57-912

Annular ball bearings P/N 203

Grease, Item 2, Appendix C

REMOVAL

WARNING

Make sure electrical power is OFF to avoid personal injury.

Remove bolts (1), flat washers (2), and lockwashers (3) and nuts (4) and remove box guard (9,

Loosen setscrew (10) and remove impeller (8) from motor (5) shaft.

Tag and disconnect wiring from motor (5) terminal box.

Remove the panel (7) with motor (5) from its mounting.

REPAIR

Repair consists of replacing the alternating current motor (5, FIGURE 2-17) or the motor bearings (5, 6,

2-74