Repair Motor, Electric (A/C #2, Accomodations)

TM 55-1905-223-24-17

2-35. Repair Motor, Electric (A/C #2, Accomodations)

This task covers:

a. Repair

INITIAL SETUP :

Tools

Equipment Condition

Tool kit, general mechanic's,

Circuit breaker switch OFF,

power panel locked and tagged

Tool kit, electrician's,

"Out of Service - Do Not Operate."

Belt guard and V-belt removed,

Puller, 5120-00-516-3120

Hydraulic Press PN 2009-13

Electric motor removed (para. 4-15).

Materials/Parts

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

operation and equipment locations.

Tag, Item 1, Appendix C

Bearing P/N P4881

Bearing P/N P4879

REPAIR

Repair consists of replacing motor bearings.

WARNING

Make sure electrical power is OFF to avoid personal injury.

a. Use a puller and remove sheave (3, FIGURE 2-26) and key (2) from motor (1) shaft.

b. Remove four screws (6, FIGURE 2-27) and remove end cover (7).

Remove four screws (8) and remove end cover (1).

d. Slide rotor (9) from motor housing (4).

e. Use a puller and remove bearings (5) and (6) from shaft.

Use a hydraulic press and install new bearings (5) and (6) onto shaft.

g. Install key (2, FIGURE 2-26) and sheave (3) on shaft of motor (1).

2-101