1991 LEXUS SC400 Service Repair Manual

Page 985 of 4087

LEXUS SC400 1991  Service Repair Manual 
4. CHECK THAT PEDAL RESERVE DISTANCE IS CORRECT,
AS SHOWN
Release the parking brake.
With the engine running, depress the pedal and measure the
pedal reserve distance, as shown.
Pedal reserve distanc

Page 986 of 4087

LEXUS SC400 1991  Service Repair Manual 
3.  BLEED MASTER CYLINDERHINT: If the master cylinder has been disassembled or if the
reservoir becomes empty,  bleed the air from the master cylin-
der.
(a)  Disconnect the brake lines from the mast

Page 987 of 4087

LEXUS SC400 1991  Service Repair Manual 
TRAC CONTROL SYSTEM BLEEDING
BR0EE±03
1.  BLEED TRACTION CONTROL SYSTEMCAUTION:
w The fluid is under high pressure, and could spray out with
great force, so exercise caution.
w When repairing the br

Page 988 of 4087

LEXUS SC400 1991  Service Repair Manual 
PARKING BRAKE CHECK AND
ADJUSTMENT
BR03R±04
1.  CHECK THAT PARKING BRAKE LEVER TRAVEL IS
CORRECT
Pull the parking brake lever all the way up, and count the
number of clicks.
Parking brake lever trav

Page 989 of 4087

LEXUS SC400 1991  Service Repair Manual 
MASTER CYLINDER
MASTER CYLINDER REMOVAL
BR0EF±03
1.     w/ TRAC:DRAIN OUT HIGH PRESSURE FLUID
(a) C onnect a vinyl tube to the bleeder plug of the TRAC
actuator, then loosen  the bleeder plug with t

Page 990 of 4087

LEXUS SC400 1991  Service Repair Manual 
5.  REMOVE MASTER CYLINDER
(a)  Remove the nuts and clamp.
(b)  Remove the master cylinder and gasket from the brakebooster.
±
BRAKE SYSTEM MASTER CYLINDERBR±13 
WhereEverybodyKnowsYourName

Page 991 of 4087

LEXUS SC400 1991  Service Repair Manual 
COMPONENTS
BR03T±05
MASTER CYLINDER DISASSEMBLY
BR0EG±05
1.  REMOVE MASTER CYLINDER BOOTUsing a screwdriver, remove the master cylinder boot.
2.  REMOVE RESERVOIR CAP AND STRAINER
(a)  Turn the res

Page 992 of 4087

LEXUS SC400 1991  Service Repair Manual 
3. REMOVE RESERVOIRRemove the set screw and pull out the reservoir.
4.  REMOVE 2 GROMMETS
5.  PLACE CYLINDER IN VISE
6. w/ TRAC: REMOVE NO.1 PISTON STOPPER BOLT
Using a screwdriver, push the pistons