2006 INFINITI QX56 Factory Service Manual

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Page 577 of 3383

INFINITI QX56 2006 Factory Service Manual ATC-176
REFRIGERANT LINES
Revision: November 20092006 QX56
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace the O-rings of the low-pressure flexible hose and high-pressu

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INFINITI QX56 2006 Factory Service Manual REFRIGERANT LINESATC-177
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5. Remove the pulley using Tool with a small adapter. Position the
small adapter on the end of the drive shaft an

Page 579 of 3383

INFINITI QX56 2006 Factory Service Manual ATC-178
REFRIGERANT LINES
Revision: November 20092006 QX56
2. Install the magnet coil harness clip using a screwdriver.
3. Install the pulley assembly using Tool and a wrench, then install
the snap ri

Page 580 of 3383

INFINITI QX56 2006 Factory Service Manual REFRIGERANT LINESATC-179
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BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done

REFRIGERANT LINESATC-179
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Revision: November 2009 2006 QX56
BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engag-
ing and disengaging the clutch about 30 times. Break-in operation raises the level of transmitted torque.
Removal and Installation for Low-pressure Flexible HoseEJS003YV
REMOVAL
1. Remove the engine room cover using power tools.
2. Remove the engine air cleaner and air ducts. Refer to EM-15, "
AIR CLEANER AND AIR DUCT"
3. Remove the cowl top extension. Refer to EI-18, "COWL TOP" .
4. Discharge the refrigerant. Refer to ATC-171, "
HFC-134a (R-134a) Service Procedure" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
5. Remove the low-pressure flexible hose.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-173, "
Components" .
CAUTION:
Replace the O-ring of the low-pressure flexible hose with a new one, then apply compressor oil to
it when installing it.
After charging refrigerant, check for leaks.
Removal and Installation for High-pressure Flexible HoseEJS003YW
REMOVAL
1. Remove the engine under cover.
2. Remove the engine air cleaner and air ducts. Refer to EM-15, "
AIR CLEANER AND AIR DUCT" .
3. Discharge the refrigerant. Refer to ATC-171, "
HFC-134a (R-134a) Service Procedure" .
4. Remove the high-pressure flexible hose. CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-173, "
Components" .
CAUTION:
Replace the O-ring of the high-pressure flexible hose with a new one, then apply compressor oil to
it when installing it.
After charging refrigerant, check for leaks.
Removal and Installation for High-pressure PipeEJS003YX
REMOVAL
1. Remove the cowl top extension. Refer to EI-18, "COWL TOP" .
2. Disconnect the battery negative terminal and positive battery terminal.
3. Reposition the IPDM E/R aside.
4. Remove the front right wheel and tire assembly. Refer to WT-7, "
Rotation" .
5. Position aside the front floor insulator.
6. Discharge the refrigerant. Refer to ATC-171, "
HFC-134a (R-134a) Service Procedure" .
7. Remove the low pressure pipe. Refer to ATC-180, "
Removal and Installation for Low-pressure Pipe" .
8. Remove the high-pressure pipe. CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-173, "
Components" .

Page 581 of 3383

INFINITI QX56 2006 Factory Service Manual ATC-180
REFRIGERANT LINES
Revision: November 20092006 QX56
CAUTION:
Replace the O-ring of the high-pressure pipe with a new one, then apply compressor oil to it when
installing it.
After charging re

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INFINITI QX56 2006 Factory Service Manual REFRIGERANT LINESATC-181
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8. Remove the rear high- and low-pressure pipes bracket bolt (A)
to release the bracket.
Rear blower motor (1)

Page 583 of 3383

INFINITI QX56 2006 Factory Service Manual ATC-182
REFRIGERANT LINES
Revision: November 20092006 QX56
5. Remove the front and rear bumper fascia. Refer to EI-13, "FRONT BUMPER" (front), EI-15, "REAR
BUMPER" (rear).
6. Reposition the front f

ATC-182
REFRIGERANT LINES
Revision: November 20092006 QX56
5. Remove the front and rear bumper fascia. Refer to EI-13, "FRONT BUMPER" (front), EI-15, "REAR
BUMPER" (rear).
6. Reposition the front fender protector out of the way. Refer to EI-23, "
FENDER PROTECTOR" .
7. Disconnect the chassis harness connector.
8. Remove the spare wheel and tire.
9. Remove the tailpipe and tailpipe hanger bracket. Refer to EX-3, "
Removal and Installation" .
10. Remove the seatbelt latch anchor. Refer to RSU-26, "
Components" .
11. Remove the front floor heat shield.
12. Disconnect each end of the underfloor rear high- and low-pressure A/C and heater core pipes. Refer to ATC-173, "
Components" .
CAUTION:
Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
13. Set two suitable jacks at the RH body mount points to support the vehicle body when it is separated from the RH side of the frame.
14. Remove the RH body mount bolts. Refer to BL-159, "
Body Mounting" .
15. Use the vehicle hoist to lower the RH side of the frame from the RH side of the body [approximately 305 mm (12 in)] until there is sufficient clearance to remove the underfloor rear high- and low-pressure A/C
and heater core pipes from between the body and the frame.
16. Remove the underfloor rear high- and low-pressure A/C and heater core pipes from the back of the vehi- cle.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-173, "
Components" .
CAUTION:
Replace the O-ring of the high/low-pressure pipe with a new one, then apply compressor oil to it
when installing it.
After charging refrigerant, check for leaks.
Removal and Installation for Refrigerant Pressure SensorEJS003YZ
REMOVAL
1. Discharge the refrigerant. Refer to ATC-171, "HFC-134a (R-134a) Service Procedure" .
2. Disconnect the refrigerant pressure sensor electrical connector and remove the refrigerant pressure sensor from the condenser.
CAUTION:
Be careful not to damage the condenser fins.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-173, "
Components" .
CAUTION:
Be careful not to damage the condenser fins.
Replace the O-ring of the refrigerant pressure sensor with a new one, then apply compressor oil to
it when installing it.
After charging refrigerant, check for leaks.
Removal and Installation for CondenserEJS003Z0
REMOVAL
1. Discharge the refrigerant. Refer to ATC-171, "HFC-134a (R-134a) Service Procedure" .
LJIA0145E

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INFINITI QX56 2006 Factory Service Manual REFRIGERANT LINESATC-183
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Revision: November 2009 2006 QX56
2. Remove the radiator. Refer to CO-14, "RADIATOR" .
CAUTION:
Be careful not to damage the core surface of the co

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