Lexus SC300 / Lexus SC400. Manual — part 250

4. FILL

BRAKE

RESERVOIR WITH BRAKE FLUID AND

BLEED BRAKE SYSTEM
(See page

BR–8

)

5. w/

TRAC:

BLEED TRAC SYSTEM
(See page

BR–10

)

6.

CHECK FOR FLUID LEAKAGE

7.

CHECK AND ADJUST BRAKE PEDAL
(See page

BR–7

)

8.

PERFORM OPERATIONAL CHECK
(See page

BR–8

)

BR–20

–

BRAKE SYSTEM

BRAKE BOOSTER

FRONT BRAKE (SC400)

COMPONENTS

BR040–0A

BRAKE PADS REPLACEMENT

BR0PU–01

1.

REMOVE FRONT WHEEL
Remove the wheel and temporarily fasten the disc with the
hub nuts.

2.

INSPECT PAD LINING THICKNESS
Check the pad thickness through the caliper inspection hole
and replace the pads if it is not within the specification.

Minimum thickness:

1.0 mm (0.039 in.)

–

BRAKE SYSTEM

FRONT BRAKE (SC400)

BR–29

3.

LIFT UP CALIPER

(a) Hold the sliding pin on the bottom and loosen the installation

bolt.

(b) Remove the installation bolt.

(c) Lift up and suspend the caliper.

HINT: Do not disconnect the flexible hose from the caliper.

4.

REMOVE FOLLOWING PARTS:

(a) 2 anti–squeal springs
(b) 2 brake pads
(c) 4

anti–squeal

shims

(d) 4 pad support plates
5.

CHECK DISC THICKNESS AND RUNOUT
(See page

BR–33

)

6.

INSTALL UNDER SIDE PAD SUPPORT PLATES

7.

INSTALL UPPER SIDE PAD SUPPORT PLATES

(a) Using cleaner, wipe off dust, water, oil, etc. from the pad

support plate contact area of the torque plate.

(b) Remove the pad support cover sheets from new pad support

plate.

BR–30

–

BRAKE SYSTEM

FRONT BRAKE (SC400)

(c) Install the new pad support plates.

8.

INSTALL NEW PADS

(a) Apply

disc brake grease to both sides of the inner anti–squeal

shim.

(b) Install the 2 anti–squeal shims on each pad.
(c) Install inner pad with the pad wear indicator plates facing

downward.

(d) Install the outer pad.

NOTICE: There should be no oil or grease adhering to the fric-

tion surfaces of the pads or the disc.

(e) Install the 2 anti–squeal springs.

9. INSTALL

CALIPER

(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the piston with water pump pliers or similar

implement.
HINT: If the piston is difficult to push in, loosen the bleeder
plug and push in the piston while letting some brake fluid es-
cape.

(c) Install the caliper.
(d) Hold the sliding pin and torque the installation bolt.

Torque: 34 N

⋅

m (350 kgf

⋅

cm, 25 ft

⋅

lbf)

10. INSTALL FRONT WHEEL
11. CHECK THAT FLUID LEVEL IS AT MAX LINE

CALIPER REMOVAL

BR042–0C

1.

DISCONNECT FLEXIBLE HOSE

(a) Remove the union bolt and 2 gaskets from the caliper, then

disconnect the flexible hose from the caliper.

(b) Use a container to catch the brake fluid as it drains out.

–

BRAKE SYSTEM

FRONT BRAKE (SC400)

BR–31