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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
5-8.
EVAPORATOR MOTOR (B1).
This task covers:
Disassembly
Repair
Reassembly
INITIAL SETUP:
Tools
Tool kit, service, refrigeration unit (Item 1, Appendix B)
File, hand (Item 22, Appendix B)
Personnel: 1
Materials:
Grease aeroshell 22 (Item 2, Appendix E)
Rags (Item 12, Appendix E)
Equipment Conditions:
Remove evaporator motor (para 4-70).
DISASSEMBLY
1.
Remove three screws (17) (see Figure 5-1).
2.
Remove fan shield (1) from end cap (5).
3.
Loosen fan clamp screw (16).
CAUTION
Plastic fan is very fragile. Be careful not to break fan when prying clamp open and prying fan off
the shaft.
4.
Pry open clamp (3).
5.
Remove plastic fan (2) by prying off shaft.
6.
Match-mark motor frame (8) and end caps (5) and (13).
7.
Remove four end cap nuts (12) and through bolts (4).
CAUTION
When removing end caps, rotor will be freed. Damage to rotor could occur if rotor is dropped while
removing end caps from motor.
8.
Remove end caps (5) and (13).
9.
Carefully pull rotor (15) from the motor frame (8).
10.
Identify location of two wavy spring washers (7) and bearing spacer washer (6).
11.
Carefully remove small bearing (10) from fan end of shaft (9).
12.
Carefully remove large bearing (11) from shaft end (14).
13.
Examine rotor (15), stator and housing (8), and shafts for nicks, gouges, deformations, or evidence of
overheating.
REPAIR
Dress high metal defects in shaft with a file. If rotor or stator are beyond repair, replace motor.
5-11
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