Lexus GS300/400 (2000 year). Service manual — part 101

BR0JO–07

–

BRAKE

FRONT BRAKE CALIPER

BR–23

2131

INSTALLATION

Installation is in the reverse order of removal (See page

BR–19

).

HINT:

After installation, fill the brake reservoir with brake fluid and bleed brake system (See page

BR–4

).

Check for leaks.

BR0JP–08

F06933

Anti–squeal Shim

Inner Anti–squeal Shim

Inner Pad

Anti–squeal Spring

Outer Pad

Inner Anti–squeal Shim

Anti–squeal Shim

Pad Guide Pin

Disc brake grease

Clip

BR–24

–

BRAKE

REAR BRAKE PAD

2132

REAR BRAKE PAD

COMPONENTS

BR0JQ–03

F07245

F04917

A

A

B

B

–

BRAKE

REAR BRAKE PAD

BR–25

2133

REPLACEMENT

1.

REMOVE REAR WHEEL

Remove the rear wheel and temporarily fasten the disc with the
3 hub nuts.

2.

INSPECT PAD LINING THICKNESS

Check the pad thickness through the caliper inspection hole
and replace pads if the thickness is not within the specification.

Minimum thickness: 1.0 mm (0.039 in.)

3.

REMOVE ANTI–SQUEAL SPRING AND PAD GUIDE
PIN

(a)

Raise the ”B” portion with hand, push up the ”A” portion
and disengage the anti–squeal spring from brake caliper.

(b)

Remove the anti–squeal spring.

NOTICE:

Do not deform the clip and anti–squeal spring.

The clip and anti–squeal spring can be used again
provided that they have sufficient rebound, no–de-
formation, cracks or wear, and have had all rust, dirt
and foreign particles cleaned off.

(c)

Remove the clip and pad guide pin.

4.

REMOVE PADS AND ANTI–SQUEAL SHIMS

(a)

Remove the 2 pads.

(b)

Remove the 4 anti–squeal shims from each pad.

5.

CHECK DISC THICKNESS AND RUNOUT
(See page

BR–30

)

6.

INSTALL NEW PADS

NOTICE:
When replacing worn pads, the anti–squeal shims must be
replaced together with the pads.
(a)

Apply disc brake grease to both sides of inner anti–squeal
shims (See page

BR–24

).

F01635

Direction of disc rotation for
forward movement

F01636

F07232

A

B

Claw

BR–26

–

BRAKE

REAR BRAKE PAD

2134

(b)

Install the 2 anti–squeal shims on each pad.

HINT:
Make sure the arrows on the inner anti–squeal shims facing to
the direction of disc rotation as shown in the illustration.
(c)

Draw out a small amount of brake fluid from the reservoir.

(d)

Press in the pistons with a monkey wrench handle or
equivalent.

HINT:

Tape the monkey wrench handle before use.

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

(e)

Install the 2 pads.

7.

INSTALL PAD GUIDE PIN AND ANTI–SQUEAL
SPRING

(a)

Install the pad guide pin and clip.

(b)

Install the anti–squeal spring.

HINT:

Ensure that the claw of the anti–squeal spring is raised up
on the caliper securely.

Ensure that there is no gap between the pad guide pin
and anti–squeal spring.

Ensure that ”A” and ”B” portions of anti–squeal spring are
attached to the pad.

8.

INSTALL FRONT WHEEL
Torque: 103 N·m (1,050 kgf·cm, 76 ft·lbf)

9.

DEPRESS BRAKE PEDAL SEVERAL TIMES

10.

CHECK THAT FLUID LEVEL IS AT MAX LINE