Lexus GS300/400 (2000 year). Service manual - part 11

N20013

R–Shape

Rotor

Snap Ring

Compressor

AC1743

AC1744

AC0950

SST

N20012

R–Shape

Snap Ring

Compressor

Stator

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

AC–41

2726

NOTICE:
At the time of reassembly, please refer to the following
item.
The snap ring should be installed so that beveled side
faces up.

(b)

Using a plastic hammer, tap the rotor off the shaft.

NOTICE:
Be careful not to damage the pulley when tapping on the ro-
tor.

3.

REMOVE STATOR

(a)

Disconnect the stator lead wire from the compressor
housing.

(b)

Using SST, remove the snap ring.
SST

07114–84020

NOTICE:
At the time of reassembly, please refer to the following
item.
The snap ring should be installed so that its beveled side
faces up.

AC0951

Stator

AC–42

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

2727

(c)

Remove the stator.

AC0WX–01

N04963

Dial Indicator

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

AC–43

2728

REASSEMBLY

Reassembly is in the reverse order of disassembly
(See page 

AC–40

).

AFTER REASSEMBLY, CHECK  MAGNETIC CLUTCH
CLEARANCE
(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 (0.020in.)

AC0WY–01

AC–44

–

AIR CONDITIONING

COMPRESSOR AND MAGNETIC CLUTCH

2729

INSTALLATION

1.

GS400:
INSTALL COMPRESSOR

(a)

Install the compressor with the 2 bolts temporarily.

(b)

Install the compressor stay with the bolt and nut temporarily.

(c)

Tighten the nut and 3 bolts.
Torque:
Bolt: 49 N·m (500 kgf·cm, 36 ft·lbf)
Nut: 29 N·m (300 kgf·cm, 22 ft·lbf)

(d)

Connect the connector.

2.

GS300:
INSTALL COMPRESSOR

(a)

Install the compressor with the stud bolt.
Torque: 52 N·m (530 kgf·cm, 38 ft·lbf)

(b)

Install the 3 bolts and nut.
Torque:
Bolt: 52 N·m (530 kgf·cm, 38 ft·lbf)
Nut: 26 N·m (265 kgf·cm, 19 ft·lbf)

(c)

Connect the connector.

(d)

Install the compressor bracket with the 2 bolts.
Torque: 52 N·m (530 kgf·cm, 38 ft·lbf)

(e)

Install the PS pump bracket with the 2 bolts.
Torque: 52 N·m (530 kgf·cm, 38 ft·lbf)

3.

GS300:
INSTALL 2 PS PUMP SET BOLTS
Torque: 58 N·m (590 kgf·cm, 43 ft·lbf)

4.

GS 300:
CONNECT DISCHARGE AND SUCTION HOSES

Connect the both hoses with the 2 nut.

Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)

NOTICE:
Hose should be connected immediately after the caps have been removed.
HINT:
Lubricate 2 new O–rings with compressor oil and install them to the hoses.
5.

GS400:
CONNECT DISCHARGE HOSE

Connect the discharge hose with the nut.

Torque: 10 N·m (100 kgf·cm, 7 ft·lbf)

NOTICE:
Hose should be connected immediately after the cap have been removed.
HINT:
Lubricate a new O–ring with compressor oil and install them to the hose.