Nissan Pathfinder (2011 year). Instruction — part 440
COMPRESSOR
HA-41
< REMOVAL AND INSTALLATION >
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3. Remove the center bolt while holding the clutch disc stationary
using Tool as shown.
4. Remove the clutch disc and shims.
CAUTION:
Retain shims for installation.
5. Remove the snap ring using a suitable tool.
6. Remove the pulley using a suitable tool (A).
CAUTION:
To prevent deformation of the pulley groove, the puller
claws should be hooked under the pulley groove and not
into the pulley groove.
7. Remove the magnet coil.
• For the VK56DE engine, using a suitable tool remove the
three magnet coil screws and remove the magnet coil.
Tool number
: J-44614
WHA228
RHA072C
AWIIA1285ZZ
WHA212
2011 Pathfinder
HA-42
< REMOVAL AND INSTALLATION >
COMPRESSOR
• For the VQ40DE engine, remove the magnet coil snap ring (A)
using a suitable tool and remove the magnet coil (1).
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. Replace as necessary.
INSTALLATION
1. Install the magnet coil.
• For the VK56DE engine, position the magnet coil and, using a
suitable tool, install the three magnet coil screws.
• For the VQ40DE engine, position the magnet coil (1) and
install the magnet coil snap ring (A) using a suitable tool.
CAUTION:
Be sure to align the magnet coil pin with the hole in the
compressor front head.
ALIIA0379ZZ
WHA212
ALIIA0379ZZ
2011 Pathfinder
COMPRESSOR
HA-43
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2. Install the pulley assembly using Tool and a wrench, then install
the snap ring using a suitable tool.
3. Install the clutch disc on the compressor shaft, together with the
original shim(s) using a suitable tool. Press the clutch disc in by
hand.
4. Install the clutch pulley bolt while using Tool to prevent the clutch
disc from turning and tighten the bolt to specification.
CAUTION:
After tightening the clutch pulley bolt, check that the clutch
pulley rotates smoothly.
5. Check the pulley clearance all the way around the clutch disc as
shown.
6. If the specified clearance is not obtained, replace the adjusting
spacer to readjust.
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
2011 Pathfinder
HA-44
< REMOVAL AND INSTALLATION >
COMPRESSOR
7. For VK56DE, install the compressor. Refer to
HA-38, "Removal and Installation for Compressor"
.
8. For VQ40DE, install the engine cooling fan. Refer to
CO-21, "Removal and Installation (Crankshaft driven
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.
2011 Pathfinder
HIGH-PRESSURE FLEXIBLE HOSE
HA-45
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HIGH-PRESSURE FLEXIBLE HOSE
Removal and Installation for Front High-pressure Flexible A/C Hose
INFOID:0000000006243600
REMOVAL
1. Remove the front left wheel and tire assembly. Refer to
2. Remove the front left fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Protec-
3. Discharge the refrigerant. Refer to
HA-36, "HFC-134a (R-134a) Service Procedure"
.
4. 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.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the front high-pressure flexible A/C hose for installation.
• After charging refrigerant, check for leaks.
2011 Pathfinder
HA-46
< REMOVAL AND INSTALLATION >
HIGH-PRESSURE PIPE
HIGH-PRESSURE PIPE
Removal and Installation for Front High-pressure A/C Pipe
INFOID:0000000006243601
REMOVAL
1. Remove the front right wheel and tire assembly. Refer to
2. Remove the front right fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Pro-
3. Discharge the refrigerant. Refer to
HA-36, "HFC-134a (R-134a) Service Procedure"
.
4. Remove the front low pressure A/C pipe. Refer to
HA-50, "Removal and Installation for Front Low-Pres-
.
5. 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.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the front high-pressure A/C pipe for installation.
• After charging refrigerant, check for leaks.
Removal and Installation for Rear High- and Low-Pressure A/C Pipes
INFOID:0000000006243602
REMOVAL
1. Discharge the refrigerant. Refer to
HA-36, "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.
CAUTION:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the rear high-and low-pressure A/C pipes 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:0000000006243603
REMOVAL
1. Release the fuel pressure. Refer to
(VK56DE).
2. Drain the engine coolant. Refer to
CO-13, "Changing Engine Coolant"
3. Disconnect the negative battery terminal.
4. Discharge the refrigerant. Refer to
HA-36, "HFC-134a (R-134a) Service Procedure"
.
5. Remove the front and rear RH wheels and tires. Refer to
6. Remove the rear bumper. Refer to
EXT-18, "Removal and Installation"
7. Disconnect the fuel filler pipe and vent pipe from the lower fuel filler hose and fuel tank.
8. Remove the front fender protector. Refer to
EXT-25, "Removal and Installation of Front Fender Protector"
.
9. Disconnect the chassis harness connector.
10. Disconnect the fuel feed hose quick connectors. Disconnect the quick connectors as follows:
2011 Pathfinder
HIGH-PRESSURE PIPE
HA-47
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• 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-7, "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-19, "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
.
PBIC1268E
PBIC0163E
2011 Pathfinder
HA-48
< REMOVAL AND INSTALLATION >
HIGH-PRESSURE PIPE
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.
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:
• Do not reuse O-rings.
• Apply A/C oil to the O-ring of the underfloor rear high-and low-pressure A/C and heater core pipes
for installation.
• After charging refrigerant, check for leaks.
• Bleed the brake system. Refer to
BR-20, "Bleeding Brake System"
.
2011 Pathfinder
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