Lexus SC300 / Lexus SC400. Manual - part 39

(b)  Using SST and torque wrench, install the shaft bolt.
SST 07112–76060

Torque: 14 N

⋅

m (140 kgf

⋅

cm, 10 ft

⋅

lbf)

4. 

CHECK CLEARANCE MAGNETIC CLUTCH
Check the clearance between the pressure plate and rotor
using thickness gauge.

Standard clearance: 0.5 

±

 0.15 mm

(0.020 

±

 0.006 in.)

If the clearance is not within tolerance, change the number
of shims to obtain the standard clearance.

AC–116

–

AIR CONDITIONING SYSTEM

Compressor

INSTALLATION OF COMPRESSOR

1. INSTALL 

COMPRESSOR

(a)  Install the compressor with the bracket, nut and the

three bolts.

Specified torque:

Bolts 51 N

⋅

m (530 kgf

⋅

cm, 38 ft

⋅

lbf)

(b)  Install the earth wire harness with the bolts.
(c)  Install the wire harness to the clamp.

2. 

INSTALL DRIVE BELT
See step 32 on page EM–177.

3. 

CONNECT CONNECTOR TO MAGNETIC CLUTCH

4. 

CONNECT DISCHARGE HOSE AND SUCTION HOSE TO
COMPRESSOR
NOTICE: Hoses should be connected immediately after
the caps have been removed.

Specified torque: 25 N

⋅

m (250 kgf

⋅

cm, 18 ft

⋅

lbf)

5. EVACUATE 

AIR 

IN 

REFRIGERATION 

SYSTEM 

AND

CHARGE WITH REFRIGERANT
See page 

AC–17

.

Specified amount: 950 

±

 50 g (33.44 

±

 1.76 oz)

6. 

INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak tester, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.

7. 

INSPECT A/C OPERATION

–

AIR CONDITIONING SYSTEM

Compressor

AC–117

RECEIVER

ON–VEHICLE INSPECTION

1.  REMOVE THE HEADLIGHT ON THE VEHICLE’S LEFT

SIDE
See page 

BE–37

2. 

INSPECT FITTINGS FOR LEAKAGE
Using a gas leak tester, check for leakage.
If there is leakage, check the tightening torque at the joints.

3. INSTALL 

HEADLIGHT

See page 

BE–37

REMOVAL OF RECEIVER

1.  REMOVE THE HEADLIGHT ON THE VEHICLE’S LEFT

SIDE
See page 

BE–37

2. 

RECOVER REFRIGERANT IN REFRIGERATION SYSTEM
See page 

AC–16

3. 

REMOVE TWO LIQUID TUBES FROM RECEIVER
Remove the two bolts and both the tubes from the receiver.

4. 

REMOVE RECEIVER FROM RECEIVER HOLDER
Remove the bolt, then remove the receiver from the receiver
holder.

NOTICE: Cap the open fittings immediately to keep mois-
ture out of the system.

AC–118

–

AIR CONDITIONING SYSTEM

Receiver

INSTALLATION OF RECEIVER

1. 

INSTALL RECEIVER IN RECEIVER HOLDER
Install the receiver in the receiver holder with the one bolt.

2. 

INSTALL TWO LIQUID TUBES ON RECEIVER
Install the two liquid tubes on the receiver with the two bolts.

Specified torque: 5.4 N

⋅

m (55 kgf

⋅

cm, 4 ft

⋅

lbf)

NOTICE: Do not remove the caps until the tubes are con-
nected.

3. REPLENISH 

COMPRESSOR 

OIL 

IF 

RECEIVER 

HAS

BEEN REPLACED

Add 20 cc (0.7 fl.oz.)

Compressor oil: ND OIL 6,

SUNISO NO. 5 GS or equivalent

4. EVACUATE 

AIR 

IN 

REFRIGERATION 

SYSTEM 

AND

CHARGE WITH REFRIGERANT
See page 

AC–17

Specified amount: 950 

±

 50 g (33.44 

±

 1.76 oz)

5. 

INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak tester, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints.

6. 

INSPECT A/C OPERATION

7. INSTALL 

HEADLIGHT

See page 

BE–37

–

AIR CONDITIONING SYSTEM

Receiver

AC–119