 |
|||
|
|
|||
|
Page Title:
AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY |
|
||
| ||||||||||
|
|
 DRAFT
TB 9-2320-279-13-1
AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
INITIAL SETUP:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Materials/Parts
Maintenance Level
None
Field Level Maintenance
Personnel Required
Equipment Condition
MOS 52C, Utilities equipment repairer (2)
Shut off engine (TM 9-2320-279-10).
Parking brake applied (TM 9-2320-279-10).
References
Wheels chocked (TM 9-2320-279-10).
TM 9-2320-279-10
Tools and Special Tools
TM 9-2320-279-20
Tool Kit, General Mechanic's (Item 7, Appendix F)
Multimeter (Item 2, Appendix F)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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.
AC temperature control switch temperature
probe damaged or installed incorrectly.
If AC condenser core
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
is damaged, recover
AC condenser motor solenoid faulty.
R-134a refrigerant
AC condenser motor red wire faulty.
(WP 0050). Replace
AC condenser motor ground wire faulty.
AC condenser core
(WP 0024) and AC
AC condenser motor faulty.
condenser dryer
NO
AC condenser assembly harness black wire
faulty.
Evacuate and charge
AC harness wire 1155 faulty.
system (WP 0050).
YES
Verify repair, go to
AC harness wire 1156 faulty.
Step 14 of this fault.
AC condenser assembly harness green wire
If AC condenser core
faulty.
is blocked with
AC condenser motor solenoid ground wire
debris, remove
faulty.
blockage. Verify
repair, go to Step 14
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
of this fault.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(0014-1 blank)/0014-2
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals