TM 9-4120-403-14
4-50.
FAN MOTOR CAPACITOR (C1)
This task covers:
a.
Inspection
c.
Removal
b.
Test
d.
Installation
INITIAL SETUP
Tools
General Safety Instructions
Tool Kit, Refrigeration
(Appendix B item 1)
WARNING
Materials/Parts
A capacitor can retain a high electrical charge. Touch-
Locknuts
ing the terminals of a charged capacitor can result in
severe electrical shock and skin bums. Always ground
the terminals of a capacitor as soon as they are exposed.
Equipment Conditions:
Junction Box Removed (para 4-32)
Inspection
(1)
Remove capacitor boots from capacitor bodies.
(2)
Using jumper cable, make contact with capacitor terminals and any convenient ground.
(3)
Check capacitor for cracks, evidence of overheating, and any other visible damage. Replace if da aged.
m
(4)
Check that top of capacitor is flat. If the top is "ballooned", it had failed and must be replaced.
Test
(1)
Tag and disconnect wire leads on capacitor (C1).
(2)
Conduct the following test using a multimeter.
*
Set meter to highest OHMS scale.
*
Connect positive (+) meter lead to positive (+) capacitor terminal.
*
Connect negative (-) meter lead to negative (-) capacitor terminal.
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