Lexus ES300 (1997 year). Manual — part 43

AC0AI–02

N21066

AC–56

–

AIR CONDITIONING

EXPANSION VALVE

1613

1997 LEXUS ES300 (RM511U)

REMOVAL

1.

REMOVE EVAPORATOR
(See page

AC–48

)

2.

REMOVE EXPANSION VALVE

Using a hexagon wrench, remove the 2 bolts and separate the
expansion valve, evaporator and tube.

Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

HINT:
At the time of installation, please refer to the following item.
Lubricate 4 new O–rings with compressor oil and install the tube
and valve.

AC0AJ–01

–

AIR CONDITIONING

EXPANSION VALVE

AC–57

1614

1997 LEXUS ES300 (RM511U)

INSTALLATION

Installation is in the reverse order of removal (See page

AC–56

).

AC0AK–01

AC–58

–

AIR CONDITIONING

WATER VALVE

1615

1997 LEXUS ES300 (RM511U)

WATER VALVE

ON–VEHICLE INSPECTION

1.

WARM UP ENGINE

2.

DISCONNECT WATER VALVE CONTROL CABLE

3.

INSPECT WATER VALVE OPERATION

(a)

Check that warm air blown out when the water valve lever is moved to ”WARM” position.

(b)

Check that cool air blown out when the water valve is moved to the ”COOL” position.

If operation is not as specified, replace the water valve.
4.

CONNECT WATER VALVE CONTROL CABLE

HINT:
After connection, adjust the control cable.

AC0AL–02

N21070

N21068

Heater Radiator Pipe

Water Valve

Upper

Hose Clip

Marking

Lower

RH

LH

Fr.

Rr.

Marking

Water Hose

Hose Clip

45

±

10

°

N21071

N21072

–

AIR CONDITIONING

WATER VALVE

AC–59

1616

1997 LEXUS ES300 (RM511U)

REMOVAL

1.

DRAIN ENGINE COOLANT FROM RADIATOR

HINT:
It is not necessary to drain out all the coolant.

2.

DISCONNECT WATER HOSES FROM WATER VALVE
AND HEATER RADIATOR PIPE

(a)

Using pliers, grip the claws of the hose clip and slide the
hose clip along the hose.

(b)

Disconnect the water hose.

HINT:
At the time of installation, please refer to the following items.

Push the water hose onto the heater radiator pipe as far
as the pipe grommet.

Install the hose clip in a position, as shown in the illustra-
tion.

3.

DISCONNECT WATER VALVE CONTROL CABLE
FROM WATER VALVE

HINT:
At the time of installation, please refer to the following item.
For installing the control cable, refer to ”INSTALLATION”.

4.

REMOVE WATER VALVE

Remove the bolt and water valve.