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 78 of 240
TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
0013 00-14
A/C ELECTRICAL SYSTEM - CONTINUED
4.
Evaporator Assembly Works But
Compressor Does Not -
Continued.
6. Verify system for normal high side
operating pressure (WP 0015 00).
1. If system pressure is within
parameters, replace high pressure
switch on receiver/dryer (WP
0019 00).
2. If system pressure is not within
parameters, inspect air conditioner
system for leaks (WP 0015 00).
Return equipment to normal condition.
7. Verify power at high pressure switch on
receiver/dryer.
(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) Disconnect wiring connector at
high pressure switch on receiver/
dryer (yellow and green wires) (WP
0019 00).
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
(e) Set A/C fan switch tothe ON
position (WP 0004 00).
(f) Check for 24 VDC on yellow wire
terminal on high pressure switch
connector to vehicle ground.
1. If 24 VDC is indicated, replace
green wire from high pressure
switch.
2. If 24 VDC is not indicated,
proceed to next step.
8. Verify power on yellow wire of RFI filter
harness.
(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) Disconnect yellow wire connector
RFI filter harness (WP 0017 00)
(next to A/C bulkhead fittings on
floor of cab).
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
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