TOYOTA LAND CRUISER 1996 J80 Manual Online

AC2R8−01
N04963
AC−38
−
AIR CONDITIONING COMPRESSOR AND MAGNETIC CLUTCH
1996 LAND CRUISER (RM451U)
REASSEMBLY
1. INSTALL COMPRESSOR
(a) Install the compressor with the 4 bolts. Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)
(b) Connect the connector.
2. CONNECT DISCHARGE AND SUCTION HOSES Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)
NOTICE:
Hoses should be connected immediately after the caps
have been removed.
HINT:
Lubricate 2 new O −rings with compressor oil and install the
hoses.
3. INSTALL AND INSPECT DRIVE BELT (See page AC−17 )
4. INSTALL ENGINE UNDER COVER
5. CONNECT NEGATIVE ( −) TERMINAL CABLE TO BAT-
TERY
6. EVACUATE AIR FROM REFRIGERATION SYSTEM
7. CHARGE SYSTEM WITH REFRIGERANT AND IN- SPECT FOR LEAKAGE OF REFRIGERANT
Specified amount:
850 ± 50 g (29.98 ± 1.76 oz.)
Using a gas leak detector, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.
8. INSPECT A/C OPERATION
Reassembly is in the reverse order of disassembly (See
page AC−35 ).
9. CHECK CLEARANCE OF MAGNETIC CLUTCH
(a) Set the dial indicator to the pressure plate of the magnetic
clutch.
(b) Connect the magnetic clutch lead wire to the positive (+) terminal of the battery.
(c) Check the clearance between the pressure plate and ro- tor when connecting the negative ( −) terminal to the bat-
tery.
Standard clearance:
0.5 ± 0.15 mm (0.020 ± 0.0059 in.)
If the clearance is not within the standard clearance, adjust the
clearance using shims to obtain the standard clearance. Shim Thickness:
0.1 mm (0.004 in.)
0.3 mm (0.012 in.)
0.5 mm (0.020 in.)
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AC2RB−01
−
AIR CONDITIONING RECEIVER
AC−39
1366
Author: Date:
1996 LAND CRUISER (RM451U)
RECEIVER
ON−VEHICLE INSPECTION
INSPECT FITTINGS FOR LEAKAGE
Using a gas leak detector, check for leakage.
If there is leakage, check the tightening toque at the joints.
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AC2RC−01
N13975
AC−40
−
AIR CONDITIONING RECEIVER
1996 LAND CRUISER (RM451U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERA TION
SYSTEM
HINT:
At the time of installation, refer to the following procedure.
Evacuate air from refrigeration system.
Charge system with refrigerant and inspect for leakage of
refrigerant.
Specified amount:
850 ± 50 g (29.98 ± 1.76 oz.)
2. DISCONNECT 2 LIQUID TUBES FROM RECEIVER
Remove the 2 bolts and both tubes.
Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of installation, lubricate 2 new O −rings with com-
pressor oil and install the tubes.
3. REMOVE RECEIVER FROM RECEIVER HOLDER
Remove the holder bolt and pull the receiver down ward.
HINT:
If receiver was replaced, add compressor oil to compressor. Add 10 cc (0.35 fl.oz.)
Compressor oil:
ND−OIL 8 or equivalent
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AC2RD−01
−
AIR CONDITIONING RECEIVER
AC−41
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (See page AC−40 ).
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AC2RG−01
AC−42
−
AIR CONDITIONING CONDENSER
1369
Author: Date:
1996 LAND CRUISER (RM451U)
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 ai\
r.
NOTICE:
Be careful not to damage the fins.
If the fins are bent, straighten them with a screwdriver or pliers.
2. INSPECT CONDENSER AND FITTINGS FOR LEAKAGE
Repair as necessary.
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AC2RE−01
AC2674
Condenser
−
AIR CONDITIONING CONDENSER
AC−43
1996 LAND CRUISER (RM451U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERA TION
SYSTEM
HINT:
At the time of installation, refer to the following procedure.
Evacuate air from refrigeration system.
Charge system with refrigerant and inspect for leakage of
refrigerant.
Specified amount:
850 ± 50 g (29.98 ± 1.76 oz.)
2. REMOVE THESE PARTS:
(a) Hood lock brace
(b) Center brace
3. DISCONNECT DISCHARGE HOSE AND LIQUID TUBE
Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of installation, lubricate 2 new O −rings with com-
pressor oil to compressor.
4. REMOVE CONDENSER
(a) Remove 2 condenser mounting bolts.
(b) Pull out the condenser between the radiator and the body.
HINT:
If condenser was replaced, add compressor oil to compressor.
Add 40 cc (1.4 fl.oz.)
Compressor oil:
ND−OIL 8 or equivalent
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AC2RF−01
AC−44
−
AIR CONDITIONING CONDENSER
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (See page AC−43 ).
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AC2RJ−03
−
AIR CONDITIONING EVAPORATOR
AC−45
1372
Author: Date:
1996 LAND CRUISER (RM451U)
EVAPORATOR
INSPECTION
1. REMOVE EVAPORATOR (See page AC−26 )
2. CHECK EVAPORATOR FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
NOTICE:
Never use water to clean the evaporator.
3. CHECK FITTINGS FOR CRACKS OR SCRATCHES
Repair as necessary.
4. REINSTALL EVAPORATOR (See page AC−26 )
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AC3JM−01
AC−46
−
AIR CONDITIONING HEATER RADIATOR
1373
Author: Date:
1996 LAND CRUISER (RM451U)
HEATER RADIATOR
INSPECTION
1. REMOVE HEATER UNIT (See page AC−28 )
2. REMOVE HEATER RADIATOR
(a) Remove the screws and plates.
(b) Pull the heater radiator out.
3. INSPECT FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
4. INSTALL HEATER RADIATOR
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AC2RR−01
−
AIR CONDITIONING EXPANSION VALVE
AC−47
1374
Author: Date:
1996 LAND CRUISER (RM451U)
EXPANSION VALVE
ON−VEHICLE INSPECTION
1. CHECK QUANTITY OF GAS DURING REFRIGERATION CYCLE
2. INSTALL MANIFOLD GAUGE SET
3. RUN ENGINE
(a) Run the engine at 1,500 rpm for at least 5 minutes.
(b) Then check that the high pressure reading is 1.37 − 1.57 MPa (14 − 16 kgf/cm
2, 199 − 228 psi).
4. CHECK EXPANSION VALVE
If the expansion valve is faulty, the low pressure reading will drop to 0 kPa (0 kgf/cm
2, 0 psi).
HINT:
When the low pressure drops to 0 kPa (0 kgf/cm
2, 0 psi), feel the receiver’s IN and OUT sides for zero temper-
ature difference.
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