Lexus RX300 (MCU15). Service manual — part 172

BR06R–05

F13262

Pad Support Plate

Inner Pad

Inner Anti–squeal Shim

Anti–squeal Shim

Pad Support Plate

Outer Pad

Inner Anti–squeal Shim

Anti–squeal Shim

Disc brake grease

N·m (kgf·cm, ft·lbf)

: Specified torque

20 (200, 14)

BR–40

–

BRAKE

REAR BRAKE PAD

LEXUS RX300 (RM785E)

REAR BRAKE PAD

COMPONENTS

BR06S–04

R00591

R00514

R10387

–

BRAKE

REAR BRAKE PAD

BR–41

LEXUS RX300 (RM785E)

REPLACEMENT

1.

REMOVE REAR 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 pads if they are not within specification.

Minimum thickness: 1.0 mm (0.039 in.)

3.

LIFT UP CALIPER

(a)

Remove the installation bolt from the torque plate.

(b)

Lift up the caliper and suspend it securely.

HINT:
Do not disconnect the flexible hose.
4.

REMOVE 2 PADS WITH 4 ANTI–SQUEAL SHIMS

5.

REMOVE 4 PAD SUPPORT PLATES

NOTICE:
The support plates can be used again provided that they
have sufficient rebound, no deformation, cracks or wear,
and have had all rust, dirt and foreign particles cleaned off.
6.

CHECK DISC THICKNESS AND RUNOUT
(See page BR–46)

7.

INSTALL 4 PAD SUPPORT PLATES

8.

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 the inner anti–
squeal shims (See page BR–40).

(b)

Install the 2 anti–squeal shims on each pad.

(c)

Install the inner pad with the pad wear indicator plate fac-
ing upward.

(d)

Install the outer pad.

NOTICE:
There should be no oil or grease adhering to the friction
surfaces of the pads or the disc.

9.

INSTALL CALIPER

(a)

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

(b)

Press in the piston with a hammer handle or similar imple-
ment.

HINT:
If the piston is difficult to push in, loosen the bleeder plug and
push in the piston while letting some brake fluid escape.
(c)

Install the caliper and torque the installation bolt.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)

BR–42

–

BRAKE

REAR BRAKE PAD

LEXUS RX300 (RM785E)

10.

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

11.

CHECK THAT FLUID LEVEL IS AT MAX LINE

12.

DEPRESS BRAKE PEDAL SEVERAL TIMES

BR06T–06

F04951

N·m (kgf·cm, ft·lbf) : Specified torque

Disc brake grease

Lithium soap base glycol grease

z Non–reusable part

z Gasket

47 (475, 34)

Plug

Caliper

Boot

Dust Boot

Dust Boot

Piston

Piston Seal

Main Pin

Boot Ring

Torque Plate

Anti–squeal Shim

Inner Anti–squeal Shim

Pad Support Plate

Inner Anti–squeal
Shim

Anti–squeal
Shim

26 (270, 20)

Piston Boot

Sliding Bushing

8.3 (85, 74 in.·lbf)

Bleeder Plug

Inner Pad

Outer Pad

29 (300, 21)

20 (200, 14)

–

BRAKE

REAR BRAKE CALIPER

BR–43

LEXUS RX300 (RM785E)

REAR BRAKE CALIPER

COMPONENTS