1996 TOYOTA LAND CRUISER air condition

AC2QK−01
N06553
−
AIR CONDITIONING MANIFOLD GAUGE SET
AC−19
1996 LAND CRUISER (RM451U)
SET OFF
1. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
2. DISCONNECT QUICK DISCONNECT ADAPTERS FROM SERVICE VALVES ON REFRIGERANT LINE
HINT:
Slide the sleeve of the quick disconnect adapter upward to un-
lock the adapter and remove it from the service valve.
3. INSTALL CAPS TO SERVICE VALVES ON REFRIGER-
ANT LINE
t
=
QJL
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AC2QM−01
AC−20
−
AIR CONDITIONING REFRIGERANT LINE
1347
Author: Date:
1996 LAND CRUISER (RM451U)
REFRIGERANT LINE
ON−VEHICLE INSPECTION
1. INSPECTION HOSE AND TUBE CONNECTIONS FOR LOOSENESS
2. INSPECT HOSES AND TUBES FOR LEAKAGE
Using a gas leak detector, check for leakage of refrigerant.
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AC2QL−01
Z17947
Liquid TubePressure Switch
Suction Tube
Discharge Hose CondenserReceiver
Suction Hose
10 (100, 7)
N·m (kgf·cm, ft·lbf) : Specified torque
 Non− reusable part
5.4 (55, 48 in.·lbf)
10 (100, 7)
14 (140, 10)
10 (100, 7)
10 (100, 7)10 (100, 7)
−
AIR CONDITIONING REFRIGERANT LINE
AC−21
1996 LAND CRUISER (RM451U)
LOCATION
N14066
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AC2QN−01
AC−22
−
AIR CONDITIONING REFRIGERANT LINE
1996 LAND CRUISER (RM451U)
REPLACEMENT
1. DISCHARGE REFRIGERANT IN REFRIGERATION SYSTEM
2. REPLACE FAULTY TUBE OR HOSE
NOTICE:
Cap the open fittings immediately to keep moisture or dirt out of the sy\
stem.
3. TORQUE CONNECTIONS TO SPECIFIED TORQUE
NOTICE:
Connections should not be torqued tighter than the specified torque.
Part tightenedN·mkgf·cmft·lbf
Compressor x Discharge hose101007
Compressor x Suction hose101007
Condenser x Discharge hose101007
Condenser x Liquid tube101007
Reciever x Liquid tube5.45548 in.·lbf
Pressure switch x Liquid tube101007
Cooling unit x Liquid tube101007
Expansion valve x Evaporator5.45548 in.·lbf
Cooling unit x Suction tube101007
Liquid tube (Piping joint)1414010
Suction line (Block joint)101007
4. EVACUATE AIR IN REFRIGERATION SYSTEM AND CHARGE WITH REFRIGERANT
Specified amount: 850 ± 50 g (29.98 ± 1.76 oz.)
5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.
6. INSPECT AIR CONDITIONING OPERATION
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AC3JL−01
−
AIR CONDITIONING COOLING UNIT
AC−23
1350
Author: Date:
1996 LAND CRUISER (RM451U)
COOLING UNIT
COMPONENTS
v
~+Packing
Engine Coolant
Temp. CutRelay
NCAmphfier------'>...,.J)
Thermistor
LowerUnitCase----"
+Non-reusable part
"JI'b,.;:y•.?~-----UpperUnitCase
c-----+Packing
Expansion Valve
~Gromet
o«'-----DrainHose
~~~paCking
A~,,~V~..~':'-'-"~--BlowerResistor'~N14361
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AC2QO−03
N06172
N14293
AC−24
−
AIR CONDITIONING COOLING UNIT
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 SUCTION TUBE AND LIQUID TUBE
FROM COOLING UNIT FITTING
Remove the 2 bolts and both tubes. 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 indtallation, lubricate 2 new O −rings with com-
pressor oil and install the tubes.
3. REMOVE THESE PARTS:
(a) Glove compratment door (See page BO−76)
(b) Glove compratment door reinforcement (See page BO−76 )
4. REMOVE COOLING UNIT
(a) Disconnect the connectors.
(b) Remove the 4 screws, 2 nuts and cooling unit.
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AC2QP−01
N06174
Hexagonal WrenchExpansion Valve
−
AIR CONDITIONING COOLING UNIT
AC−25
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. REMOVE A/C AMPLIFIER
2. REMOVE RELAY
3. REMOVE WIRE HARNESS
4. REMOVE BLOWER RESISTOR
Remove the 2 screws and blower resistor.
5. SEPARATE UPPER AND LOWER UNIT CASES
(a) Using a knife, cut off the each packing.
(b) Remove 3 clips and 4 screws.
(c) Separate the upper and lower unit cases.
6. REMOVE EVAPORATOR FROM LOWER UNIT CASE
HINT:
If the evaporator was replaced, add compressor oil to the com-
pressor.
Add 40 cc (1.4 fl.oz.)
Compressor oil:
ND−OIL 8 or equivalent
7. REMOVE THERMISTOR
Pull out the thermistor from the evaporator.
8. REMOVE EXPANSION VALVE
Using a hexagon wrench, remove the 2 bolts and separate the
expansion valve and evaporator. Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)
HINT:
At the time of reassembly, lubricate 4 new O−rings with com-
pressor oil and install the tubes.
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AC2QQ−01
AC−26
−
AIR CONDITIONING COOLING UNIT
1996 LAND CRUISER (RM451U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See page AC−25 ).
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