1991 LEXUS SC400 Service Repair Manual

Page 145 of 4087

LEXUS SC400 1991  Service Repair Manual 
12.  REMOVE CONNECTOR BRACKET FROM UNDER SIDEOF BLOWER MOTOR
Remove the two screws and the bracket.
13.  REMOVE A/C UNIT
(a)  Disconnect connectors from the unit.
(b)  Remove the six bolts and the A/

Page 146 of 4087

LEXUS SC400 1991  Service Repair Manual 
9. INSTALL EVAPORATORSee page  AC±124
10.  INSTALL INSTRUMENT PANEL REINFORCEMENT
11. INSTALL ENGINE See page EM±167
12. E V ACUATE AIR IN REFRIGERATION SYSTEM AND
CHARGE WITH REFRIGERANT
See page

Page 147 of 4087

LEXUS SC400 1991  Service Repair Manual 
COMPRESSOR
INSPECTION OF COMPRESSOR
(Magnetic Clutch)
See page AC±86
(Compressor)
1.  INSTALL MANIFOLD GAUGE SET
See page  AC±15
2. START ENGINE
3.  INSPECT COMPRESSOR FOR METALLIC SOUND Check  tha

Page 148 of 4087

LEXUS SC400 1991  Service Repair Manual 
REMOVAL OF COMPRESSOR
1.  RUN ENGINE AT IDLE SPEED WITH A/C ON FORAPPROX. TEN MINUTES
2. STOP ENGINE
3.  DISCONNECT NEGATIVE (±) CABLE FROM BATTERY
4. RECOVER REFRIGERANT FROM REFRIGERATION
SYSTEM
5

Page 149 of 4087

LEXUS SC400 1991  Service Repair Manual 
8. REMOVE COMPRESSOR(a)  Remove under cover.
(b)  Remove harness from the clamp.
(c)  Remove the earth wire harness set bolt.
(d)  R e m o v e t h e n u t , t h r e e b o l t s , b r a c k e t a n d

Page 150 of 4087

LEXUS SC400 1991  Service Repair Manual 
1.  REMOVE PRESSURE PLATE(a)  Using a SST and socket wrench, remove the shaft bolt.SST 07112±76060
(b)  Install a SST on the pressure plate. SST 07112±66040
(c)  Using a SST and socket wrench, remo

Page 151 of 4087

LEXUS SC400 1991  Service Repair Manual 
(b)  Using a plastic hammer, tap the rotor off the shaft.NOTICE: Be careful not to damage the pulley when tap-
ping on the rotor.
3. REMOVE STATOR (a)  Disconnect  the stator lead wire from the compr

Page 152 of 4087

LEXUS SC400 1991  Service Repair Manual 
ASSEMBLY OF MAGNETIC CLUTCH
1. INSTALL STATOR(a)  Install the stator on the compressor.
(b)  Using a SST, install the snap ring.SST 07114±84020
NOTICE: The snap ring should be installed so that its