1991 LEXUS SC400 Service Repair Manual

Page 1145 of 4087

LEXUS SC400 1991  Service Repair Manual 
(c)  Remove the alternator washer.
6.  REMOVE ROTOR FROM DRIVE END FRAME
INSPECTION AND REPAIR OF
ALTERNATOR
Rotor
1.  INSPECT ROTOR FOR OPEN CIRCUIT Using an ohmmeter, check that there is continuity

Page 1146 of 4087

LEXUS SC400 1991  Service Repair Manual 
Stator (Drive End Frame)
1.  INSPECT STATOR FOR OPEN CIRCUITUsing an ohmmeter, check that there is continuity between
the coil leads.
If there is no continuity, replace the drive end frame assem-
bly

Page 1147 of 4087

LEXUS SC400 1991  Service Repair Manual 
Bearings
1.  INSPECT FRONT BEARINGCheck that the bearing is not rough or worn.
2.  IF NECESSARY, REPLACE FRONT BEARING (a)  Remove the four screws, bearing retainer and bearing.
(b) Using a  socket w

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LEXUS SC400 1991  Service Repair Manual 
3.  INSPECT REAR BEARINGCheck that the bearing is not rough or worn.
4.  IF NECESSARY, REPLACE REAR BEARING (a)  Using SST, remove the bearing cover and bearing.
SST 09820±00021
NOTICE: Be careful n

Page 1149 of 4087

LEXUS SC400 1991  Service Repair Manual 
ASSEMBLY OF ALTERNATOR
(See Components on page CH±10)
1.  PLACE RECTIFIER END FRAME ON PULLEY
2.  INSTALL ROTOR TO RECTIFIER END FRAME
3.  INSTALL RECTIFIER END FRAME (a)  Place the alternator washe

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LEXUS SC400 1991  Service Repair Manual 
4. INSTALL PULLEY(a)  Install the pulley to the rotor shaft by tightening thepulley nut by hand.
(b)  Hold SST (A) with a torque wrench, and tighten SST (B)
clockwise to the specified torque.
SST 098

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LEXUS SC400 1991  Service Repair Manual 
6.  INSTALL IC REGULATOR AND BRUSH HOLDER(a)  Place the IC regulator together and brush holder on therectifier end frame.
NOTICE: Be careful of the holder installation direction.
(b) Install the five

Page 1152 of 4087

LEXUS SC400 1991  Service Repair Manual 
INSTALLATION OF ALTERNATOR
(See Components on page CH±9)
1. INSTALL ALTERNATOR (a)  Install the alternator and A/T oil cooler bracket with the
bolt and nut.
Torque: 37 N Vm (380 kgf Vcm, 27 ft Vlbf)