TB-9-2320-302-13-P-3
CREW PROTECTION KIT; AIR CONDITIONING KIT PART 3 OF 3
TECHNICAL BULLETIN; OPERATOR’S, UNIT, AND DIRECT SUPPORT, MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST
MARCH 2008
TB-9-2320-302-13-P-3 - Page 76 of 240
TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
0013 00-12
A/C ELECTRICAL SYSTEM - CONTINUED
3.
Evaporator Assembly Works But
Engine Fan Does Not -
Continued.
(f) Return equipment to normal
condition.
4.
Evaporator Assembly Works But
Compressor Does Not.
1. Verify power at compressor.
(a) Disconnect green diode harness
from compressor clutch connector.
(b) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
(c) Set A/C fan switch to the ON
position (WP 0004 00).
(d) Check for 24 VDC on green
connector to vehicle ground.
1. If 24 VDC is not indicated,
proceed to step 4.
2. If 24 VDC is indicated, proceed to
next step.
2. Verify ground connection at compressor
frame.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
(b) Set A/C fan switch to the OFF
position (WP 0004 00).
(c) Check for continuity between
compressor frame and vehicle
ground.
1. If continuity is not indicated,
repair ground on compressor.
2. If continuity is indicated, proceed
to next step.
(d) Return equipment to normal
condition.
3. Verify operation of compressor clutch.
(a) Start engine (TM 9-2320-363-10).
(b) Set A/C fan switch to the ON
position (WP 0004 00).
(c) Verify compressor clutch engages. 1. If compressor clutch engages,
proceed to step 13.
2. If compressor clutch does not
engage, replace compressor.
(d) Return equipment to normal
condition.
4. Check diode shorted to ground.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
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