Repair Motor, Electric, Alternating Current (Supply Fan #6)

TM 55-1905-223-24-17

2-29. Repair Motor, Electric, Alternating Current (Supply Fan #6)

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."

Puller, 5120-00-516-3120

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

operation and equipment location.

Materials/Parts

Tags, Item 1, Appendix C

Grease, Item 2, Appendix C

AC electric motor

P/N 35J790W321

Bearing P/N 205

Annular ball bearing P/N 203

WARNING

Make sure electrical power is OFF to avoid personal injury.

REMOVAL

Remove weather cover from fan assembly for access to motor (paragraph 2-28).

Tag and disconnect electrical wiring in motor terminal box (9, FIGURE 2-16).

Refer to paragraph 2-28 and FIGURE 2-18, and remove the motor as follows:

(1)

Loosen tension on V-belt (8). Remove belt from around motor pulley (9, FIGURE 2-18).

(2)

Remove the motor pulley.

(3)

Remove motor mounting bolt, nut, and lockwasher assemblies (3).

(4)

Remove the motor (2) from the motor base (10).

2-81