Lexus GS300/400 (2000 year). Service manual — part 15
AC0X7–01
–
AIR CONDITIONING
HEATER RADIATOR
AC–57
2742
INSTALLATION
Installation is in the reverse order of removal (See page
AC0X8–01
AC–58
–
AIR CONDITIONING
EXPANSION VALVE
2743
EXPANSION VALVE
ON–VEHICLE INSPECTION
1.
CHECK QUANTITY OF GAS DURING REFRIGERATION CYCLE
2.
SET ON MANIFOLD GAUGE SET
(See page
3.
RUN ENGINE
Run the engine at 1,500 rpm for at least 5 minutes.
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).
AC0X9–01
I02404
–
AIR CONDITIONING
EXPANSION VALVE
AC–59
2744
REMOVAL
1.
DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
HINT:
At the time of installation, please refer to the following item.
Evacuate air from refrigeration system.
Charge system with refrigerant and inspect for leakage of refrig-
erant.
Specified amount: 600
±
50 g (21.16
±
1.76 oz.)
2.
REMOVE INSTRUMENT PANEL
(See page
3.
REMOVE EXPANSION VALVE
(a)
Pry out the packings.
HINT:
At the in time of installation, please refer to the following item.
Do not reuse the packing.
(b)
Using SST, remove the 4 bolts and separate the expan-
sion valve and tube and accessory.
SST
07110–61050
Torque: 4.1 N·m (42 kgf·cm, 36 in.·lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the in time of installation, please refer to the following item.
Lubricate 6 new O–rings with compressor oil and install them
to the tube and valve.
AC0XA–01
AC–60
–
AIR CONDITIONING
EXPANSION VALVE
2745
INSTALLATION
Installation is in the reverse order of removal (See page
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