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COMPRESSOR
ON±VEHICLE INSPECTION
1. INSTALL MANIFOLD GAUGE SET
(See page AC±23)
2. RUN ENGINE AT APPROX. 1,500 RPM
3. CHECK COMPRESSOR FOR FOLLOWING:
(1) High pressure gauge reading is not lower and low
pressure gauge reading is not higher than normal.
(b) Metallic sound
(e) Leakage from shaft seal
If defects are found, repair the compressor.
4. CHECK MAGNETIC CLUTCH
(a) Inspect the pressure plate, and the rotor for signs of
oil.
(b) Check the clutch bearings for noise and grease leak-
age.
(e) Using an ohmmeter, measure the resistance of the
stator coil between the clutch lead wire and ground.
Standard resistance: 3.4 ± 3.8
at 20°C (68°F)
If resistance value is not as specified, replace the coil.
(d) Connect the positive (+) lead from the battery to ter-
minal 1, check that the magnetic clutch is energized.
If magnetic clutch is not energized, replace the coil.
NOTICE: Do not short positive (+) lead wire on the vehicle
by applying battery voltage.
Installation of Manifold Gauge Set
1. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
2. INSTALL CHARGING HOSES OF GAUGE SET TO
CHARGING VALVES
Connect the low pressure hose to the low pressure charg-
ing valve and the high ..pressure hose to the high pres-
sure charging valve. Tighten the hose nuts by hand.
HINT Do not apply compressor oil to the seat of the con-
nection.
± AIR CONDITIONING SYSTEMCompressorAC±23
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5. CHECK REVOLUTION DETECTING SENSOR
Using an ohmmeter, measure the resistance between
two terminals of the sensor.
Specified resitance: 100 ± 130
at 20°C (68°F)
If resistance value is not as specified, replace the revolu-
tion detecting sensor.
6. CHECK SOLENOID VALVE
Using an ohmmeter, check the continuity.
If continuity is not as specified, replace the valve.
± AIR CONDITIONING SYSTEMCompressorAC±24
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REMOVAL OF COMPRESSOR
3S±FE Engine Model
± AIR CONDITIONING SYSTEMCompressorAC±25
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1. RUN± ENGINE AT IDLE SPEED WITH AIR
CONDITIONING ON FOR 10 MINUTES
2. STOP ENGINE
3. DISCONNECT NEGATIVE CABLE FROM BATTERY
4. REMOVE BATTERY
5. (2VZ±FE ENGINE)
REMOVE IGNITOR BRACKET, RADIATOR FAN AND
CONDENSER FAN
6. DISCONNECT CONNECTOR FOR MAGNETIC
CLUTCH, TEMPERATURE SWITCH AND REVOLU-
TION DETECTING SENSOR
7. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
8. DISCONNECT TWO HOSES FROM COMPRESSOR
SERVICE VALVES
Cap the open fitting immediately to keep moisture out of
the system.
9. REMOVE COMPRESSOR
(a) Loosen the drive belt.
(b) Remove the compressor mounting bolts and the
compressor.
± AIR CONDITIONING SYSTEMCompressorAC±26
Page 229 of 2389
DISASSEMBLY OF MAGNETIC
CLUTCH
1. REMOVE PRESSURE PLATE
(a) Using SST and a socket, remove the shaft bolt.
SST 07112±76060
(c) Using SST and the socket, remove the pressure plate.
SST 07112±76060(b) Install SST to the pressure plate.
SST 07112±66040
± AIR CONDITIONING SYSTEMCompressorAC±27
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3. REMOVE STATOR
(a) Disconnect the stator lead wire from the compressor
housing. (b) Using a plastic hammer, tap the rotor off the shaft.
NOTICE: Be careful not to damage the pulley when
tapping on the rotor. 2. REMOVE ROTOR
(a) Using SST, remove the snap ring.
SST 07114±84020
(b) Using SST, remove the snap ring.
SST 07114±84020 (d) Remove the shims from the pressure plate.
± AIR CONDITIONING SYSTEMCompressorAC±28
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(c) Using SST and torque wrench, fasten the magnetic
clutch lead wire to the cylinder block.
Torque: 35 kg±cm (3o in.±ib, 3.4 N±m)
SST 07110±61050
ASSEMBLY OF MAGNETIC CLUTCH
1. INSTALL STATOR
(a) Install the stator on the compressor.
NOTICE: The snap ring should be installed so that its
R±shape looks up. (b) Using SST, install the new snap ring.
SST 07114±84020(c) Remove the stator.
± AIR CONDITIONING SYSTEMCompressorAC±29
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4. CHECK CLEARANCE OF MAGNETIC CLUTCH
Check the clearance between the pressure plate and ro-
tor using thickness gauge.
Standard clearance: 0.5
+ 0.15 mm
(0.020
+ 0.0059 in.)
If the clearance is not within tolerance, charge the num-
ber of shims to obtain the standard clearance. 2. INSTALL ROTOR
(a) Install the rotor on the compressor shaft.
(b) Using SST, install the new snap ring.
SST 07114±84020
(b) Using SST and torque wrench, instal! the shaft bolt.
SST 07112±76064
Torque: 135 kg±cm (9.7 ft±Ib, 13 N±m) NOTICE: The snap ring should be installed so that its
R±shape looks up.
3. INSTALL PRESSURE PLATE
(a) Put the shims to the pressure plate.
± AIR CONDITIONING SYSTEMCompressorAC±30