torque LEXUS SC400 1991 Service User Guide

(b) Using SST and torque wrench, install the shaft bolt.SST 07112±76060
Torque: 14 N Vm (140 kgf Vcm, 10 ft Vlbf)
4. CHECK CLEARANCE MAGNETIC CLUTCH
Check the clearance between the pressure plate and rotor
using thickness gauge.
Standard clearance: 0.5 + 0.15 mm
(0.020 + 0.006 in.)
If the clearance is not within tolerance, change the number
of shims to obtain the standard clearance.
AC±116
±
AIR CONDITIONING SYSTEM Compressor
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INSTALLATION OF COMPRESSOR
1. INSTALL COMPRESSOR(a) Install the compressor with the bracket, nut and the three bolts.
Specified torque:
Bolts 51 N Vm (530 kgf Vcm, 38 ft Vlbf)
(b) Install the earth wire harness with the bolts.
(c) Install the wire harness to the clamp.
2. INSTALL DRIVE BELT See step 32 on page EM±177.
3. CONNECT CONNECTOR TO MAGNETIC CLUTCH
4. CONNECT DISCHARGE HOSE AND SUCTION HOSE TO COMPRESSOR
NOTICE: Hoses should be connected immediately after
the caps have been removed.
Specified torque: 25 N Vm (250 kgf Vcm, 18 ft Vlbf)
5. EVACUATE AIR IN REFRIGERATION SYSTEM AND
CHARGE WITH REFRIGERANT
See page AC±17.
Specified amount: 950 + 50 g (33.44 + 1.76 oz)
6. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak tester, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.
7. INSPECT A/C OPERATION
±
AIR CONDITIONING SYSTEM CompressorAC±117
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RECEIVER
ON±VEHICLE INSPECTION
1. REMOVE THE HEADLIGHT ON THE VEHICLE'S LEFTSIDE
See page BE±37
2. INSPECT FITTINGS FOR LEAKAGE Using a gas leak tester, check for leakage.
If there is leakage, check the tightening torque at the joints.
3. INSTALL HEADLIGHT See page BE±37
REMOVAL OF RECEIVER
1. REMOVE THE HEADLIGHT ON THE VEHICLE'S LEFT
SIDE
See page BE±37
2. RECOVER REFRIGERANT IN REFRIGERATION SYSTEM See page AC±16
3. REMOVE TWO LIQUID TUBES FROM RECEIVER Remove the two bolts and both the tubes from the receiver.
4. REMOVE RECEIVER FROM RECEIVER HOLDER Remove the bolt, then remove the receiver from the receiver
holder.
NOTICE: Cap the open fittings immediately to keep mois-
ture out of the system.
AC±118
±
AIR CONDITIONING SYSTEM Receiver
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INSTALLATION OF RECEIVER
1. INSTALL RECEIVER IN RECEIVER HOLDERInstall the receiver in the receiver holder with the one bolt.
2. INSTALL TWO LIQUID TUBES ON RECEIVER Install the two liquid tubes on the receiver with the two bolts.
Specified torque: 5.4 N Vm (55 kgf Vcm, 4 ft Vlbf)
NOTICE: Do not remove the caps until the tubes are con-
nected.
3. REPLENISH COMPRESSOR OIL IF RECEIVER HAS BEEN REPLACED
Add 20 cc (0.7 fl.oz.)
Compressor oil: ND OIL 6,
SUNISO NO. 5 GS or equivalent
4. EVACUATE AIR IN REFRIGERATION SYSTEM ANDCHARGE WITH REFRIGERANT
See page AC±17
Specified amount: 950 + 50 g (33.44 + 1.76 oz)
5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak tester, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.
6. INSPECT A/C OPERATION
7. INSTALL HEADLIGHT See page BE±37
±
AIR CONDITIONING SYSTEM ReceiverAC±119
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CONDENSER
ON±VEHICLE INSPECTION
1. INSPECT CONDENSER FINS FOR BLOCKAGE OR
DAMAGE
If the fins are clogged, wash them with water and dry with
compressed air.
NOTICE: Be careful not to damage the fins.
If the fins are bent, straighten them with a screwdriver or pli-
ers.
2. INSPECT CONDENSER AND FITTINGS FOR LEAKAGE Using a gas leak tester, check for leakage.
If there is leakage, check the tightening torque at the joints.
REMOVAL OF CONDENSER
1. RECOVER REFRIGERANT IN REFRIGERATION SYSTEMSee page AC±16
2. REMOVE BATTERY
3. REMOVE CONDENSER UPPER COVER AND RADIATOR FITTING BOLT
4. REMOVE UNDER COVER AND AIR FLOW COVER
5. REMOVE LIQUID TUBE AND SUCTION TUBE Remove two bolts and both tubes.
NOTICE: Cap open the fittings immediately to keep mois-
ture out of the system.
6. REMOVE CONDENSER Remove two nuts and lean the radiator backward, then re-
move the condenser.
AC±120
±
AIR CONDITIONING SYSTEM Condenser
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INSTALLATION OF CONDENSER
1. INSTALL CONDENSERInstall the condenser with two nuts.
2. INSTALL LIQUID TUBE AND DISCHARGE TUBE
Install both tubes with two bolts.
Specified torque:
Discharge tube 10 N Vm (100 kgf Vcm, 7 ft Vlbf)
Liquid tube 10 N Vm (100 kgf Vcm, 7 ft Vlbf)
NOTICE: Don't remove caps until the tube is installed.
3. IF CONDENSER WAS REPLACED, ADD COMPRESSOR OIL TO COMPRESSOR
ADD 40±50 cc (1.4±1.7 ft.oz.)
Compressor oil: ND OIL 6,
SUNISO NO. 5 GS or equivalent
4. EVACUATE AIR IN REFRIGERATION SYSTEM ANDCHARGE WITH REFRIGERANT
See page AC±17
Specified amount: 950 + 50 g (33.44 + 1.76 oz)
5. INSPECT FOR LEAKAGE OF REFRIGERATN
Using a gas leak tester, check for leakage of refrigerant.
6. INSTALL REMOVAL PARTS Install the removal parts in reverse order of removal proce-
dure.
±
AIR CONDITIONING SYSTEM CondenserAC±121
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INSTALLATION OF EVAPORATOR
1. INSTALL REMOVAL PARTSInstall the removal parts in reverse order of removal proce-
dure.
HINT:
wThe tightening torque for the bolt used to install the
expansion valve on the evaporator is shown below.
Specified torque: 5.4 N Vm (55 kgf Vcm, 48 ft Vlbf)
w The tightening torque for the bolts used to install the
liquid tube and suction tube to the cooling is shown
below.
Specified torque: 10 N Vm (100 kgf Vcm, 7 ft Vlbf)
w The tightening torque specified for the bolt used to
install the equalizer tube to EPR is shown below.
Specified torque: 25 N Vm (250 kgf Vcm, 18 ft Vlbf)
2. IF EVAPORATOR WAS REPLACED, ADD COMPRESSOR
OIL TO EVAPORATOR
Add 40±50 cc (1.4±1.7 fl.oz)
Compressor oil: ND OIL 6,
SUNISO NO. 5 GS or equivalent
3. EVACUATE AIR IN REFRIGERATION SYSTEM ANDCHARGE WITH REFRIGERANT
Specified amount: 950 + 50 g (33.44 + 1.76 oz)
4. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak tester, check for leakage of refrigerant.
AC±124
±
AIR CONDITIONING SYSTEM Evaporator
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EXPANSION VALVE
ON±VEHICLE INSPECTION
1. CHECK QUANTITY OF GAS DURING REFRIGERATIONCYCLE
2. INSTALL MANIFOLD GAUGE SET
3. RUN ENGINE
Run the engine at 2,000 rpm for at least 5 minutes. Then
check that the high pressure reading is 1,275±1,471 kPa
(13±15 kgf/cm, 185±213 psi).
4. CHECK EXPANSION VALVE If the expansion valve is faulty, the low pressure reading will
drop to 0 kPa (0 kgf/cm, 0 psi), otherwise it is OK.
HINT: When the low pressure drops to 0 kPa (0 kgf/cm, 0 psi),
feel the receiver's IN and OUT sides for no temperature differ-
ence.
REMOVAL OF EXPANSION VALVE
1. REMOVE EVAPORATOR See page AC±124.
2. REMOVE EQUALIZER TUBES
3. REMOVE EXPANSION VALVE
INSTALLATION OF EXPANSION VALVE
1. INSTALL EXPANSION VALVE
Specified torque:
0.31 inch tube 13 N Vm (135 kgf Vcm, 10 ft Vlbf)
0.50 inch tube 22 N Vm (225 kgf Vcm, 16 ft Vlbf)
2. INSTALL EQUALIZER TUBES
3. INSTALL EVAPORATOR
See page AC±124
AC±126
±
AIR CONDITIONING SYSTEM Expansion Valve
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REVOLUTION DETECTING SENSOR
INSPECTION OF REVOLUTION
DETECTING SENSOR
See page AC±55
REMOVAL OF REVOLUTION DETECTING
SENSOR
1. REMOVE COMPRESSOR
See page AC±111
2. REMOVE SENSOR Remove the two bolts and the sensor.
INSTALLATION OF REVOLUTION
DETECTING SENSOR
1. INSTALL SENSORUsing a torque wrench, tighten the bolts.
Specified Torque: 6 N Vm (60 kgf Vcm, 4 ft Vlbf)
2. INSTALL COMPRESSOR
See page AC±117
±
AIR CONDITIONING SYSTEM Revolution Detecting SensorAC±135
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INSTALLATION OF PRESSURE SWITCH
1. INSTALL PRESSURE SWITCH
(a) Install the pressure switch to the liquid tube.
Specified torque: 10 NVm (100 kgf Vcm, 7 ft Vlbf)
HINT: Lock the switch mount on the tube with an open end
wrench, being careful not to deform the tube, and install the
switch.
(b) Connect the connector.
2. EVACUATE AIR IN REFRIGERATION SYSTEM AND CHARGE WITH REFRIGERANT
See page AC±17
Specified amount: 950 + 50 g (33.44 + 1.76 oz)
3. INSPECTION FOR LEAKAGE OF REFRIGERANT
Using a gas lead tester, check for leakage of refrigerant from
the pressure switch mount.
4. INSPECT A/C OPERATION
POWER TRANSISTOR
REMOVAL OF POWER TRANSISTOR
1. REMOVE GLOVE BOX
2. REMOVE POWER TRANSISTOR
(a) Disconnect connectors.
(b) Remove the two screws and the power transistor.
INSPECTION OF POWER TRANSISTOR
See page AC±79
INSTALLATION OF POWER
TRANSISTOR
1. INSTALL POWER TRANSISTOR
(a) Install power transistor with two screws.
(b) Connect connectors.
2. INSTALL GLOVE BOX
See page BO±112
±
AIR CONDITIONING SYSTEM Pressure Switch, Power TransistorAC±137
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