2004 INFINITI QX56 Factory Service Manual

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Page 569 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-164
REFRIGERANT LINES
Revision: August 20072004 QX56
ComponentsEJS002DI
Front A/C Compressor and Condenser
WJIA1578E

Page 570 of 3371

INFINITI QX56 2004 Factory Service Manual REFRIGERANT LINES
ATC-165
C
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B
AT C
Revision: August 20072004 QX56
Rear A/C
NOTE:
Refer to AT C - 7 , "
Precautions for Refrigerant Connection" .
1. High-pressure service valve 2.

Page 571 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-166
REFRIGERANT LINES
Revision: August 20072004 QX56
Removal and Installation for CompressorEJS002DJ
A/C Compressor Mounting
REMOVAL
1. Discharge the refrigerant. Refer to ATC-162, "HFC-134a (R-13

Page 572 of 3371

INFINITI QX56 2004 Factory Service Manual REFRIGERANT LINES
ATC-167
C
D
E
F
G
H
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K
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B
AT C
Revision: August 20072004 QX56
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace the O-ring of the low-pressure flex

Page 573 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-168
REFRIGERANT LINES
Revision: August 20072004 QX56
5. Remove the pulley using Tool with a small adapter. Position the
small adapter on the end of the drive shaft and the center of the
puller on

Page 574 of 3371

INFINITI QX56 2004 Factory Service Manual REFRIGERANT LINES
ATC-169
C
D
E
F
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AT C
Revision: August 20072004 QX56
2. Install the magnet coil harness clip using a screwdriver.
3. Install the pulley assembly using Tool and a wrench

Page 575 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-170
REFRIGERANT LINES
Revision: August 20072004 QX56
BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engag-
ing and disengaging

ATC-170
REFRIGERANT LINES
Revision: August 20072004 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 HoseEJS002DL
REMOVAL
1. Remove the engine room cover using power tools.
2. Remove the engine air cleaner and air ducts. Refer to EM-14, "
REMOVAL" .
3. Remove the cowl top extension. Refer to EI-18, "
COWL TOP" .
4. Discharge the refrigerant. Refer to ATC-162, "
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 con-
taminants.
5. Remove the low-pressure flexible hose. Refer to ATC-164, "
Components" .
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-164, "
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 HoseEJS002DM
REMOVAL
1. Remove the engine under cover.
2. Remove the engine air cleaner and air ducts. Refer to EM-14, "
REMOVAL" .
3. Discharge the refrigerant. Refer to ATC-162, "
HFC-134a (R-134a) Service Procedure" .
4. Remove the high-pressure flexible hose. Refer to ATC-164, "
Components" .
CAUTION:
Cap or wrap the joint of the hose with suitable material such as vinyl tape to avoid the entry of
contaminants.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-164, "
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 PipeEJ S00 2DN
REMOVAL
1. Remove the cowl top extension. Refer to EI-18, "COWL TOP" .
2. Disconnect the battery negative cable.
3. Reposition the IPDM E/R aside.
4. Remove the front right wheel and tire assembly. Refer to WT-6, "
Rotation" .
5. Position aside the front floor insulator.
6. Discharge the refrigerant. Refer to ATC-162, "
HFC-134a (R-134a) Service Procedure" .
7. Remove the low pressure pipe. Refer to ATC-171, "
Removal and Installation for Low-pressure Pipe" .
8. Remove the high-pressure pipe. Refer to ATC-164, "
Components" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of con-
taminants.

Page 576 of 3371

INFINITI QX56 2004 Factory Service Manual REFRIGERANT LINES
ATC-171
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-164, "
Components" .
CAUTION:
Replace

REFRIGERANT LINES
ATC-171
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-164, "
Components" .
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 refrigerant, check for leaks.
Removal and Installation for Low-pressure PipeEJ S00 2DO
REMOVAL
1. Discharge the refrigerant. Refer to ATC-162, "HFC-134a (R-134a) Service Procedure" .
2. Remove the cowl top and the cowl top extension. Refer to EI-18, "
COWL TOP" .
3. Remove the low-pressure pipe. Refer to ATC-164, "
Components" .
CAUTION:
Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of
contaminants.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-164, "
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 Rear High- and Low-pressure A/C and Heater Core
Pipes
EJS0060M
REMOVAL
1. Discharge the refrigerant. Refer to ATC-162, "HFC-134a (R-134a) Service Procedure" .
2. Drain the coolant from the engine cooling system. Refer to CO-8, "
Changing Engine Coolant" .
3. Disconnect the underfloor rear heater hoses (1 and 2) from the
rear heater pipes underneath the vehicle.
⇐: Front
4. Remove the rear high- and low-pressure pipes bolt (A) to dis-
connect the rear high- and low-pressure pipes from the under-
floor rear high- and low-pressure pipes underneath the vehicle.
CAUTION:
Cap or wrap the joint of the pipes with suitable material
such as vinyl tape to avoid the entry of air.
5. Remove the rear high- and low-pressure pipes nuts (B) under-
neath the vehicle.
NOTE:
The remaining steps are performed inside the rear luggage area of the vehicle.
6. Remove the luggage side finisher lower RH. Refer to EI-39, "
LUGGAGE FLOOR TRIM" .
7. Disconnect the rear heater core hoses (1 and 2) from the rear
heater core (3).
⇐: Front
WJIA2310E
WJIA2311E

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