Nissan Frontier. Manual — part 859
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< REMOVAL AND INSTALLATION >
COMPRESSOR
6. Remove the pulley using Tool (A) (QR25DE), or suitable tool (A)
(VQ40DE).
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 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 and snap ring using a suitable tool.
CAUTION:
Be sure to align the magnet coil pin with the hole in the
compressor front head.
2. Install the pulley assembly using Tool and a wrench, then install
the snap ring using a suitable tool.
Tool number
(QR25DE only)
: KV99233130 (J-29884)
AWIIA1285ZZ
ALIIA0379ZZ
WHA213
Tool number
: — (J-38873-A)
WJIA1016E
COMPRESSOR
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3. Install the clutch disc on the compressor shaft, together with all
of 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.
7. Install the cooling fan. Refer to
tion (Crankshaft driven type)"
Installation (Crankshaft driven type)"
8. Install the engine room cover (VQ40DE only). Refer to
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.
WHA184
Tool number
: — (J-44614)
WHA229
Clutch disc-to-pulley clearance
: 0.3 - 0.6 mm
(0.012 - 0.024 in)
WHA194
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HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE
Removal and Installation
INFOID:0000000009478591
REMOVAL
1. Remove the front left wheel and tire. Refer to
.
2. Remove the front left mudguard. Refer to
EXT-29, "Removal and Installation"
.
3. Remove the front left fender protector. Refer to
EXT-27, "Removal and Installation of Front Fender Protec-
4. Discharge the refrigerant. Refer to
HA-14, "HFC-134a (R-134a) Service Procedure"
.
5. Remove the high-pressure flexible A/C hose.
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 high-pressure flexible A/C hose for installation.
• After charging refrigerant, check for leaks.
HIGH-PRESSURE PIPE
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HIGH-PRESSURE PIPE
Removal and Installation
INFOID:0000000009478592
REMOVAL
1. Remove the front right wheel and tire (VQ40DE only). Refer to
2. Remove the front right mudguard (VQ40DE only). Refer to
EXT-29, "Removal and Installation"
.
3. Remove the front right fender protector (VQ40DE only). Refer to
EXT-27, "Removal and Installation of
.
4. Discharge the refrigerant. Refer to
HA-14, "HFC-134a (R-134a) Service Procedure"
.
5. Remove the low pressure A/C pipe. Refer to
HA-33, "Removal and Installation"
6. Remove the high-pressure A/C pipe.
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 high-pressure A/C pipe for installation.
• After charging refrigerant, check for leaks.
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