NISSAN X-TRAIL 2003 Electronic Repair Manual

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HFC-134a (R-134a) Service ProcedureEJS000V7
SETTING OF SERVICE TOOLS AND EQUIPMENT
Discharging Refrigerant
WA RN ING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If
accidental system discharge occurs, ventilate work area before resuming service. Additional health
and safety information may be obtained from refrigerant and lubricant manufacturers.
Evacuating System and Charging Refrigerant
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ComponentsEJS000V8
Refer to pageAT C - 5reading "Precautions for Refrigerant connection".
NOTE:
This illustration is for RHD models. The blower unit and heater&cooling unit layouts for LHD models are sym-
metrically opposite.
*1 LubricantAT C - 2 1 , "LUBRICANT
RETURN OPERATION"
*3 Refrigerant leaksATC-140, "Check-
ing for Refrigerant Leaks"
*4 Performance test diagnosesAT C - 8 3 ,
"PERFORMANCE TEST DIAG-
NOSES"
*2 Checking for refrigerant leaksAT C -
140
RJIA0576E

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NOTE:
This illustration is for LHD models. The blower unit and heater&cooling unit layouts for RHD models are sym-
metrically opposite.
Removal and Installation for CompressorEJS000V9
REMOVAL
With Gasoline Engine
RJIA0577E
RJIA0578E

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With Diesel Engine
1. Using recycling and recovery equipment (for HFC-134a), discharge the refrigerant.
2. Remove the engine under cover.
3. Remove the compressor-alternator belt.
Refer to,EM-13, "
Removal and Installation"QR engine;E M - 111 , "Removal and Installation"YD engine.
4. Remove the mounting nuts (bolts) from the high-pressure flexi-
ble hose and low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Disconnect the compressor connector.
RHA667H
RJIA0073E
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6. Remove the mounting bolts from compressor.
7. Remove the compressor from the lower side of the vehicle
INSTALLATION
CAUTION:
lReplace the O-ring of the low-pressure flexible hose and
high-pressure flexible hose with a new one, then apply
compressor oil to it when installing it.
lWhen pouring refrigerant, check for leaks.
RJIA0021E
RJIA0580E
RJIA0023E
Bolts mounting the compressor
Tightening torque : 56.9 - 65.7 N-m (5.8 - 6.8 kg-m)
Nut (bolt) mounting the high-pressure flexible hose
Tightening torque : 7.85 - 19.6 N-m (0.8 - 2.0 kg-m)
Nut (bolt) mounting the low-pressure flexible hose
Tightening torque : 7.85 - 19.6 N-m (0.8 - 2.0 kg-m)
RJIA0581E

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Removal and Installation for Compressor ClutchEJS000VA
REMOVAL
Overhaul (With Gasoline Engine: CWV-615M Compressor)
1. When removing center bolt, hold clutch disc with wrench.
2. Removetheclutchdiscusingtheclutchdiscpuller.
3. Remove the snap ring using external snap ring pliers.
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4. Position the center pulley puller on the end of the drive shaft,
and remove the pulley assembly using any commercially avail-
able pulley puller.
To prevent the pulley groove from being deformed, the puller
claws should be positioned into the edge of the pulley assembly.
5. Remove the field coil harness clip using a pair of pliers.
6. Remove the snap ring using external snap ring pliers.
Overhaul (With Diesel Engine: DKV-11G Compressor)
1. Remove the two screws holding the connector bracket, thermal
protector to the compressor.
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2. When removing center bolt, hold clutch disc with clutch disc
wrench.
3. Remove the drive plate using the clutch disc puller.
4. Insert holder's three pins into the drive plate. Rotate the holder
clockwise to hook it onto the plate.
5. Tighten the center bolt to remove the drive plate.
6. While tightening the center bolt, insert a screwdriver between
two of the pins (as shown in the figure) to prevent rotation.
7. After removing the drive plate, remove the shims from either the
drive shaft or the drive plate.
8. Remove the snap ring using external snap ring pliers.
9. Remove the pulley assembly with the puller using a commer-
cially available pulley puller. (Position the center of the puller on
the end of the drive shaft)
For pressed pulleys:
To prevent deformation of the pulley groove, the puller claws
should be hooked under (not into) the pulley groove.
For machine lathed pulleys:
Align the pulley puller groove with the pulley groove, and then
remove the pulley assembly.
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10. Remove the field coil harness clip using a screwdriver.
11. Then remove the three field coil fixing screws and remove the
field 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 the contact surface
of pulley sows 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 coil for loose connection or cracked insulation.
INSTALLATION
With Gasoline Engine (CWV-615M Compressor)
1. Install the field coil.
Be sure to align the coil's pin with the hole in the compressor's
front head.
2. Install the field coil harness clip using a screwdriver.
RHA074C
RJIA0582E
RJIA0583E
RHA142E