2007 INFINITI QX56 Factory Service Manual

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Page 521 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERANT LINESATC-151
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
*1 AT C - 2 0 , "Maintenance of Oil Quanti-
ty in Compressor"
*3ATC-167, "Electronic Refrigerant
Leak Detector"

Page 522 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-152
< SERVICE INFORMATION >
REFRIGERANT LINES
Component
INFOID:0000000003533292
Front A/C Compressor and Condenser
WJIA1578E
1. High-pressure service valve 2. Grommet 3. High-pressure pipe
4. Ref

Page 523 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERANT LINESATC-153
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Rear A/C
NOTE:
Refer to AT C - 4 , "
Precaution for Refrigerant Connection".
WJIA2315E
1. Rear heater and cooling

Page 524 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-154
< SERVICE INFORMATION >
REFRIGERANT LINES
Removal and Installation for Compressor
INFOID:0000000003533293
A/C Compressor Mounting
REMOVAL
1. Discharge the refrigerant. Refer to ATC-150, "HFC

Page 525 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERANT LINESATC-155
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Removal and Installation for Compressor ClutchINFOID:0000000003533294
Magnet Clutch Assembly
REMOVAL
1. Remove the c

Page 526 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-156
< SERVICE INFORMATION >
REFRIGERANT LINES
5. Remove the pulley using Tool with a small adapter. Position thesmall adapter on the end of the drive shaft and the center of the
puller on the sma

Page 527 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERANT LINESATC-157
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
3. Install the pulley assembly using Tool and a wrench, then install the snap ring using snap ring pliers.
4. Instal

Page 528 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-158
< SERVICE INFORMATION >
REFRIGERANT LINES
BREAK-IN OPERATION
When replacing compressor clutch assembly, always conduct the break-in operation. This is done by engag-
ing and disengaging the c

ATC-158
< SERVICE INFORMATION >
REFRIGERANT LINES
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 HoseINFOID:0000000003533295
REMOVAL
1. Remove the engine room cover using power tools.
2. Remove the engine air cleaner and air ducts. Refer to EM-15
.
3. Remove the cowl top extension. Refer to EI-17
.
4. Discharge the refrigerant. Refer to ATC-150, "
HFC-134a (R-134a) Service Procedure".
CAUTION:
Cap or wrap the joint of the pipe with suitable mate rial 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-152, "
Component".
CAUTION:
• Replace the O-ring of the low-pr essure 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 HoseINFOID:0000000003533296
REMOVAL
1. Remove the engine under cover.
2. Remove the engine air cleaner and air ducts. Refer to EM-15
.
3. Discharge the refrigerant. Refer to ATC-150, "
HFC-134a (R-134a) Service Procedure".
4. Remove the high-pressure flexible hose. CAUTION:
Cap or wrap the joint of the pipe with suitable mate rial such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
Refer to ATC-152, "
Component".
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 PipeINFOID:0000000003533297
REMOVAL
1. Remove the cowl top extension. Refer to EI-17.
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-150, "
HFC-134a (R-134a) Service Procedure".
7. Remove the low-pressure pipe. Refer to ATC-159, "
Removal and Installation for Low-Pressure Pipe".
8. Remove the high-pressure pipe. CAUTION:
Cap or wrap the joint of the pipe with suitable mate rial such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.

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