DISASSEMBLY (cont) - TM-5-4120-393-140221

TM 5-4120-393-14

5-7. Condenser Fan Motor (B2) (Welco Industries Model) (cont)

Dress high metal defects in shafts with a fine file or stone. If rotor or stator are beyond repair, replace motor.

Coat shaft surfaces with oil.

Coat the bearing cavity of each end bracket (6) with oil and insert spacer was hers (10), bearing loading springs

(11), and bearing (9) in same locations as removed from in step (e) above.

Insert bearing (9) in rear end bracket (6) and secure it with four screws (12) and two bearing retainer halves (13).

Carefully work end brackets (6) onto shaft ends keeping the match-marks made at time of disassembly in

alignment.

m. Check that a nut (7) is in place on the end of each stud (8).

Using a wrench and vice grips or pliers, retain studs (8)and evenly tighten the nuts (7) on to stud ends (8). Before

final tightening, check for freedom of rotation by turning shaft by hand. There should be no drag or binding.

Adjust as necessary and tighten screws. Check again for binding and drag.

Check end play of shaft. End play should be 0.003 inch. If end play is not within limits, disassemble motor and

add or remove shims to adjust.

Install motor. See para 4-60.

5-15