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TM5-4120-376-14
4-20. COMPRESSOR, ACCUMULATOR, AND RELATED PARTS/lnspect, Test (Cont)
LOCATION/ITEM
MOTOR, COMPRESSOR
Test:
1. Use an ohmmeter or other continuity testing device, check continuity between connector
pins A-B, A-C and B-C. Continuity should not be indicated.
2. Using an ohmmeter or other continuity testing device, check continuity between
compressor housing and connector pins A, B and C. Continuity should not be indicated.
3. If continuity requirements are not met, notify Direct Support.
Thermal Overload Compressor
1. Using an ohmmeter or other continuity testing device, check continuity between thermal
overload pins. Continuity should be indicated.
2. Using an ohmmeter or other continuity testing device, check continuity between thermal
overload and compressor housing. Continuity should not be indicated.
3. If continuity requirements are not met, notify Direct Support.
Crankcase Heater
1. Using an ohmmeter or other continuity testing device, check continuity between
connector pins. Continuity should be indicated.
2. Using an ohmmeter or other continuity testing device, check continuity between
compressor housing and connector pins. Continuity should be indicated.
3. If continuity requirements are not met, notify Direct Support.
Thermal Overload Crankcase Heater
1. Using an ohmmeter or other continuity testing device, check continuity between
connector pins. Continuity should be indicated.
2. Using an ohmmeter or other continuity testing device, check continuity between
compressor housing and connector pins. Continuity should not be indicated.
3. If continuity requirements are not met, notify Direct Support. Check for the lack of
continuity between the two thermal overload (crankcase heater). Replace thermal overload
(crankcase heater) that does not meet continuity requirements.
4. Check system pressures in accordance with (Table 5-2).
4-83
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