Nissan Frontier D40. Instruction — part 721

REFRIGERATION SYSTEM

HA-27

< ON-VEHICLE REPAIR >

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1.

Shut-off valve

2.

A/C service valve

3.

Recovery/Recycling equipment

4.

Refrigerant container (HFC-134a)

5.

Refrigerant weight scale

6.

Vacuum pump

7.

Manifold gauge set with hoses and
couplers

WJIA1161E

HA-28

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COMPRESSOR

COMPRESSOR

Removal and Installation for Compressor

INFOID:0000000005272563

COMPONENTS

A/C Compressor Mounting - QR25DE

WJIA1277E

1.

Compressor

2.

Compressor idler bracket

COMPRESSOR

HA-29

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A/C Compressor Mounting - VQ40DE

REMOVAL

1.

Discharge the A/C refrigerant. Refer to

HA-26, "HFC-134a (R-134a) Service Procedure"

.

2.

Remove the front left wheel and tire (for VQ40DE only). Refer to

WT-46, "Rotation"

.

3.

Remove the front left mud guard (for VQ40DE only). Refer to

EXT-24, "Removal and Installation"

.

4.

Remove the LH front fender protector (for VQ40DE only). Refer to

EXT-22, "Removal and Installation of

Front Fender Protector"

.

5.

Remove the engine cover (for VQ40DE only). Refer to

EM-138, "Removal and Installation"

.

6.

Remove the engine air cleaner and air ducts (For VQ40DE only). Refer to

EM-129, "Removal and Installa-

tion"

.

7.

Remove the drive belt. Refer to

EM-14, "Removal and Installation"

(QR25DE),

EM-127, "Removal and

Installation"

(VQ40DE).

8.

Disconnect the compressor harness connector.

9.

Disconnect both the high-pressure flexible A/C hose and low-pressure flexible A/C hose from the com-
pressor.

CAUTION:

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

10. Remove the A/C compressor bolts using power tools.

NOTE:
For the QR25DE engine, the upper compressor bolt is longer than the other compressor bolts and can
only be removed by repositioning the compressor after all the bolts have been loosened.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Replace the O-ring of the low-pressure flexible A/C hose and high-pressure flexible A/C hose with a

new one, apply compressor oil to the O-rings before installation.

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

HA-20, "Checking of

Refrigerant Leaks"

.

NOTE:
For the QR25DE engine, the upper compressor bolt is longer than the other compressor bolts and must be
installed in the compressor before positioning the compressor for installation.

LJIA0176E

1.

Compressor

2.

Front timing chain case

3.

Rear timing chain case

4.

Cylinder block

HA-30

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COMPRESSOR

Removal and Installation for Compressor Clutch

INFOID:0000000005272564

Magnet Clutch Assembly

NOTE:
Illustrations for removal and installation are shown with the compressor out of the vehicle for clarity.

REMOVAL

1.

Remove the cooling fan. Refer to

CO-19, "Removal and Installation (Crankshaft driven type)"

(QR25DE),

CO-46, "Removal and Installation (Crankshaft driven type)"

(VQ40DE).

2.

Remove the center bolt while holding the clutch disc stationary
using Tool as shown.

3.

Remove the clutch disc and shims.

CAUTION:

Retain the shims for installation.

4.

Remove the snap ring using a suitable tool.

AWIIA1284GB

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