Infiniti QX56 (JA60). Manual - part 581

REFRIGERATION SYSTEM

HA-29

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

ON-VEHICLE REPAIR

REFRIGERATION SYSTEM

Component

INFOID:0000000005147652

Front A/C System

WJIA1578E

HA-30

< ON-VEHICLE REPAIR >

REFRIGERATION SYSTEM

Rear A/C System

NOTE:

Refer to 

HA-5, "Precaution for Refrigerant Connection"

.

1.

High-pressure service valve

2.

Grommet

3.

High-pressure pipe

4.

Refrigerant pressure sensor

5.

Condenser

6.

Compressor shaft seal

7.

High-pressure flexible hose

8.

Low-pressure flexible hose

9.

Low-pressure service valve

10. Low-pressure pipe

11. Expansion valve (front)

12. Drain hose

AWIIA0134GB

1.

Rear heater and cooling unit assembly 2.

Rear A/C pipes

3.

Rear A/C heater core pipes

4.

Rear heater core hose

5.

Rear blower motor

6.

Underfloor rear A/C pipes

7.

Underfloor rear heater core pipes

A.

Bolt torque specification

B.

Leak checking order (l - r)

C.

Tightening torque

D.

Wrench size

E.

O-ring size

Front

NOTE: The O-ring size 8 is the high-side and the O-ring size 16 is the low-side.

COMPRESSOR

HA-31

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

COMPRESSOR

Removal and Installation for Compressor

INFOID:0000000005147653

A/C Compressor Mounting

REMOVAL

1. Discharge the refrigerant. Refer to 

HA-20, "HFC-134a (R-134a) Service Procedure"

.

2. Remove the front right wheel and tire assembly. Refer to 

WT-49, "Rotation"

.

3. Remove the engine under cover and the splash shield using power tool.
4. Remove the engine air cleaner and air ducts. Refer to 

EM-25, "Removal and Installation"

.

5. Remove the drive belt. Refer to 

EM-13, "Removal and Installation"

.

6. Disconnect the compressor electrical connector.
7. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air. 

8. Remove the compressor bolts and nut using power tools.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Replace the O-rings of the low-pressure flexible hose and high-pressure flexible hose with new

ones, apply compressor oil to the O-rings when installing them.

AWIIA1291GB

HA-32

< ON-VEHICLE REPAIR >

COMPRESSOR

• After recharging the A/C system with refrigerant, check for leaks.

Removal and Installation for Compressor Clutch

INFOID:0000000005147654

Magnet Clutch Assembly

REMOVAL

1. Remove the compressor. Refer to 

HA-31, "Removal and Installation for Compressor"

.

2. Remove the center bolt while holding the clutch disc stationary

using Tool as shown.

3. Remove the clutch disc and shims.

CAUTION:

Retain all of the shims for installation.

4. Remove the snap ring using a suitable tool.

AWIIA1286GB

1.

Magnet clutch assembly

2.

Magnet coil

3.

Pulley

4.

Clutch disc

5.

Snap ring

6.

Thermal protector (built in)

7.

Compressor

Tool number

:  — (J-44614)

WHA228

RHA072C