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Page Title:
AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY |
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 DRAFT
TB 9-2320-364-13&P-1
AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY
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INITIAL SETUP:
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Maintenance Level
Materials/Parts
Field Level Maintenance
None
Equipment Condition
Personnel Required
Shut off engine (TM 9-2320-364-10).
MOS 52C, Utilities equipment repairer (2)
Parking brake applied (TM 9-2320-364-10).
References
Wheels chocked (TM 9-2320-364-10).
TM 9-2320-364-10
Tools and Special Tools
TM 9-2320-364-20
Tool Kit, General Mechanic's (Item 9, Appendix F)
Multimeter (Item 2, Appendix F)
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START
1.
WARNING
KNOWN INFO
TEST OPTIONS
Read WARNING on
AC heater/evaporator blower operates.
Visual inspection.
AC compressor operates.
REASON FOR QUESTION
POSSIBLE PROBLEMS
Is AC condenser core free
If AC condenser core is
from damage and debris?
damaged or blocked, AC
AC condenser core blocked or damaged.
system will not operate
AC compressor belts loose or damaged.
properly.
Temperature control switch temperature
probe damaged or installed incorrectly.
If AC condenser core
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is damaged, recover
AC harness wire 1435 faulty.
R-134a refrigerant
AC harness wire 1155 faulty.
(WP 0053). Replace
AC harness wire 1156 faulty.
AC condenser core
(WP 0023) and AC
AC condenser harness black wire faulty.
condenser dryer
NO
AC condenser motor red wire faulty.
Evacuate and charge
system (WP 0053).
AC condenser motor ground wire faulty.
YES
Verify repair, go to
AC condenser motor faulty.
Step 15 of this fault.
AC condenser harness green wire faulty.
If AC condenser core
is blocked with
faulty.
debris, remove
blockage. Verify
repair, go to Step 15
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of this fault.
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