Nissan Pathfinder (2008 year). Manual — part 430
COMPRESSOR
HA-43
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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 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.
6.
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
1.
Install the magnet coil.
CAUTION:
Be sure to align the magnet coil pin with the hole in the
compressor front head.
2.
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
3.
Install the pulley assembly using Tool and a wrench, then install
the snap ring using snap ring pliers.
4.
Install the clutch disc on the compressor shaft, together with the
original shim(s). Press the clutch disc down by hand.
5.
Install the clutch pulley bolt using Tool, to prevent the clutch disc
from turning and tighten the bolt to specification. Refer to
.
CAUTION:
After tightening the clutch pulley bolt, check that the clutch
pulley rotates smoothly.
6.
Check the pulley clearance all the way around the clutch disc as
shown.
7.
If the specified clearance is not obtained, replace the adjusting
spacer to readjust.
8.
Install the compressor. Refer to
.
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
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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
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HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE
Removal and Installation for Front High-pressure Flexible A/C Hose
INFOID:0000000001689465
REMOVAL
1.
Remove the front left wheel and tire assembly. Refer to
.
2.
Remove the front left mud guard.
3.
Remove the front left splash shield.
4.
Discharge the refrigerant. Refer to
HA-37, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the front high-pressure flexible A/C hose. Refer to
.
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
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
1.
Remove the front right wheel and tire assembly. Refer to
.
2.
Remove the front right mud guard.
3.
Remove the front right splash shield.
4.
Discharge the refrigerant. Refer to
HA-37, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the front low pressure A/C pipe. Refer to
HA-51, "Removal and Installation for Front Low-Pres-
.
6.
Remove the front high-pressure A/C pipe. Refer to
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
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
1.
Discharge the refrigerant. Refer to
HA-37, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the luggage side lower finisher RH. Refer to
3.
Remove the rear high- and low-pressure A/C pipes. Refer to
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
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
1.
Release the fuel pressure. Refer to
(VQ40DE),
(VK56DE).
2.
Drain the engine coolant. Refer to
CO-12, "Changing Engine Coolant"
3.
Disconnect the negative battery terminal.
4.
Discharge the refrigerant. Refer to
HA-37, "HFC-134a (R-134a) Service Procedure"
.
5.
Remove the rear bumper. Refer to
EXT-15, "Removal and Installation"
.
6.
Disconnect the fuel filler pipe and vent pipe from the lower fuel filler hose and fuel tank.
7.
Remove the front fender protector. Refer to
EXT-20, "Removal and Installation of Front Fender Protector"
.
8.
Disconnect the chassis harness connector.
9.
Remove the front and rear RH wheels and tires. Refer to
.
10. Disconnect the fuel feed hose quick connectors. Disconnect the quick connectors as follows:
HA-48
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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
lation of Front Brake Piping and Brake Hose"
12. Remove the upper radiator mounting plates. Refer to
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
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
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
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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
.
HA-50
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LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE
Removal and Installation for Front Low-Pressure Flexible A/C Hose
INFOID:0000000001689467
REMOVAL
1.
Remove the front right wheel and tire assembly. Refer to
.
2.
Remove the front right mud guard.
3.
Remove the front right splash shield.
4.
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.
5.
Remove the front low-pressure flexible A/C hose. Refer to
.
INSTALLATION
Installation is in the reverse order of removal.
Refer to
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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