Nissan Pathfinder (2008 year). Manual - part 430

COMPRESSOR

HA-43

< ON-VEHICLE REPAIR >

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 the small adapter.

CAUTION:

To prevent deformation of the pulley groove, the puller
claws should be hooked under the pulley groove and not
into the pulley groove.

Remove the magnet coil harness clip using a screwdriver,
remove the three magnet coil fixing screws and remove the
magnet coil.

INSPECTION

Clutch Disc

If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.

Pulley

Check the appearance of the pulley assembly. If contact surface of pulley shows signs of excessive grooving,
replace clutch disc and pulley. The contact surfaces of the pulley assembly should be cleaned with a suitable
solvent before reinstallation.

Coil

Check magnet coil for loose connections or any cracked insulation.

INSTALLATION

Install the magnet coil.

CAUTION:

Be sure to align the magnet coil pin with the hole in the
compressor front head.

Install the magnet coil harness clip using a screwdriver.

Tool number

: KV99233130 (J-29884)

WJIA1017E

WHA212

WHA183

WHA213

HA-44

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COMPRESSOR

Install the pulley assembly using Tool and a wrench, then install
the snap ring using snap ring pliers.

Install the clutch disc on the compressor shaft, together with the
original shim(s). Press the clutch disc down by hand.

Install the clutch pulley bolt using Tool, to prevent the clutch disc
from turning and tighten the bolt to specification. Refer to

HA-34,

"Component"

CAUTION:

After tightening the clutch pulley bolt, check that the clutch
pulley rotates smoothly.

Check the pulley clearance all the way around the clutch disc as
shown.

If the specified clearance is not obtained, replace the adjusting
spacer to readjust.

Install the compressor. Refer to

HA-40, "Removal and Installa-

tion for Compressor"

Tool number

—

(J-38873-A)

WJIA1016E

WHA184

Tool number

: J-44614

WHA229

Clutch disc-to-pulley clearance

: 0.3 - 0.6 mm
(0.012 - 0.024 in)

WHA194

COMPRESSOR

HA-45

< ON-VEHICLE REPAIR >

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.

HA-46

< ON-VEHICLE REPAIR >

HIGH-PRESSURE FLEXIBLE HOSE

HIGH-PRESSURE FLEXIBLE HOSE

Removal and Installation for Front High-pressure Flexible A/C Hose

INFOID:0000000001689465

REMOVAL

Remove the front left wheel and tire assembly. Refer to

WT-36, "Rotation"

Remove the front left mud guard.

Remove the front left splash shield.

Discharge the refrigerant. Refer to

HA-37, "HFC-134a (R-134a) Service Procedure"

Remove the front high-pressure flexible A/C hose. Refer to

HA-34, "Component"

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

HA-34, "Component"

CAUTION:

• Replace the O-ring of the front high-pressure flexible A/C hose with a new one, then apply compres-

sor oil to it for installation.

• After charging refrigerant, check for leaks.

HIGH-PRESSURE PIPE

HA-47

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HIGH-PRESSURE PIPE

Removal and Installation for Front High-pressure A/C Pipe

INFOID:0000000001689466

REMOVAL

Remove the front right wheel and tire assembly. Refer to

WT-36, "Rotation"

Remove the front right mud guard.

Remove the front right splash shield.

Discharge the refrigerant. Refer to

HA-37, "HFC-134a (R-134a) Service Procedure"

Remove the front low pressure A/C pipe. Refer to

HA-51, "Removal and Installation for Front Low-Pres-

sure A/C Pipe"

Remove the front high-pressure A/C pipe. Refer to

HA-34, "Component"

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

HA-34, "Component"

CAUTION:

• Replace the O-ring of the front high-pressure A/C pipe with a new one, then apply compressor oil to

it for installation.

• After charging refrigerant, check for leaks.

Removal and Installation for Rear High- and Low-Pressure A/C Pipes

INFOID:0000000001689490

REMOVAL

Discharge the refrigerant. Refer to

HA-37, "HFC-134a (R-134a) Service Procedure"

Remove the luggage side lower finisher RH. Refer to

INT-18, "Component"

Remove the rear high- and low-pressure A/C pipes. Refer to

HA-34, "Component"

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

HA-34, "Component"

CAUTION:

• Replace the O-ring of the rear high- and low-pressure A/C pipes with a new one, then apply compres-

sor oil to it for installation.

• After charging refrigerant, check for leaks.

Removal and Installation for Underfloor Rear High- and Low-Pressure A/C and Heater
Core Pipes

INFOID:0000000001689496

REMOVAL

Release the fuel pressure. Refer to

EC-481, "Fuel Pressure Check"

(VQ40DE),

EC-948, "Fuel Pressure

Check"

(VK56DE).

Drain the engine coolant. Refer to

CO-12, "Changing Engine Coolant"

Disconnect the negative battery terminal.

Discharge the refrigerant. Refer to

HA-37, "HFC-134a (R-134a) Service Procedure"

Remove the rear bumper. Refer to

EXT-15, "Removal and Installation"

Disconnect the fuel filler pipe and vent pipe from the lower fuel filler hose and fuel tank.

Remove the front fender protector. Refer to

EXT-20, "Removal and Installation of Front Fender Protector"

Disconnect the chassis harness connector.

Remove the front and rear RH wheels and tires. Refer to

WT-36, "Rotation"

10. Disconnect the fuel feed hose quick connectors. Disconnect the quick connectors as follows:

HA-48

< ON-VEHICLE REPAIR >

HIGH-PRESSURE PIPE

• Hold the sides of the connector, push in the tabs and pull out the tube.
• If the connector and the tube are stuck together, push and pull several times until they start to move.

Then disconnect them by pulling.

CAUTION:

• The quick connector can be disconnected when the tabs

are completely depressed. Do not twist the quick connec-
tor more than necessary.

• Do not use any tools to disconnect the quick connector.
• Keep the resin tube away from heat. Be especially careful

when welding near the tube.

• Prevent any acid liquids such as battery electrolyte, from

getting on the resin tube.

• Do not bend or twist the resin tube during connection.
• Do not remove the remaining retainer on the hard tube (or

the equivalent) except when the resin tube or the retainer
is replaced.

• When the resin tube or hard tube, or the equivalent, is

replaced, also replace the retainer with a new one (semi-
transparent colored retainer).

• To keep the quick connector clean and to avoid damage

and contamination from foreign materials, cover the quick
connector with plastic bags or suitable material as shown.

11. Disconnect the frame mounted brake tubes from the brake system. Refer to

BR-18, "Removal and Instal-

lation of Front Brake Piping and Brake Hose"

12. Remove the upper radiator mounting plates. Refer to

CO-16, "Components"

13. Disconnect the A/C lines ground strap.

14. Disconnect the exhaust system ground strap. Refer to

EX-5, "Removal and Installation"

15. Disconnect each end of the underfloor rear high- and low-pressure A/C and heater core pipes. Refer to

HA-34, "Component"

CAUTION:

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

16. Remove the front floor heat shield.

17. Remove the heater pipe heat shield.

18. Disconnect the steering column from the power steering gear. Refer to

ST-17, "Removal and Installation"

19. Set four suitable jacks at the body mount points to support the vehicle body when it is separated from the

frame.

20. Remove the body mount bolts. Refer to

BRM-8, "Body Mounting"

21. Use the vehicle hoist to lower the frame from the body [approximately 457 mm (18 in)] until there is suffi-

cient clearance for the underfloor rear high- and low-pressure A/C and heater core pipes from the body.

PBIC1268E

PBIC0163E

HIGH-PRESSURE PIPE

HA-49

< ON-VEHICLE REPAIR >

22. Remove the underfloor rear high- and low-pressure A/C and heater core pipes.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Replace the O-ring of the underfloor rear high- and low-pressure A/C and heater core pipes with a

new one, then apply compressor oil to it for installation.

• After charging refrigerant, check for leaks.
• Bleed the brake system. Refer to

BR-9, "Bleeding Brake System"

HA-50

< ON-VEHICLE REPAIR >

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE

Removal and Installation for Front Low-Pressure Flexible A/C Hose

INFOID:0000000001689467

REMOVAL

Remove the front right wheel and tire assembly. Refer to

WT-36, "Rotation"

Remove the front right mud guard.

Remove the front right splash shield.

Discharge the refrigerant. Refer to

HA-37, "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.

Remove the front low-pressure flexible A/C hose. Refer to

HA-34, "Component"

INSTALLATION

Installation is in the reverse order of removal.
Refer to

HA-34, "Component"

CAUTION:

• Replace the O-ring of the front low-pressure flexible A/C hose with a new one, then apply compres-

sor oil to it for installation.

• After charging refrigerant, check for leaks.

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