TM 9-4120-402-14
5-9. EVAPORATOR AND CONDENSER FAN MOTOR (B2) REPAIR.
This task covers: Repair
INITIAL SETUP
Tools
Equipment Condition
Refrigeration Unit Service Tool Kit
Remove evaporator and condenser fan motor
(B2)
Appendix B, item 1
Bearing Puller
CAUTION
Appendix B, item 12
Soldering Gun Kit
Use disconnect switch (NOT
Appendix B, item 2
POWER CABLE) to disconnect
power to unit. Damage to cable
Materials/Parts
connector pins will result if cable is
used.
Oil
Appendix E, item 17
Disconnect power at power source.
Lock Washers
Appendix E, item 7
NOTE
Check nameplate on motor for manufacturer and use repair instructions below which pertain to the
motor in your air conditioner.
For additional information on electric motor repair refer to FM 20-31 (Electric Motor and Generator
Repair).
Repair.
(1)
Welco Industries motor.
(a) To replace connector (1):
1
Remove four sets of screws (2) and lock washers (3).
2
Pull terminal box (4) as far from motor as wire leads will allow.
3
Remove four screws (5).
4
Pull connector (1) as far out of terminal box as wire leads will allow.
5
Tag and unsolder wire leads from connector (1). (See paragraph 4-26.)
6 See wiring diagram figure 4-10 and tags and solder leads to new connector (1).
Remove tags.
(See
5-23
