Lexus RX300 (MCU15). Service manual - part 170

BR1KO–01

F13287

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

Disc brake grease

34 (350, 25)

Inner Anti–squeal Shim

Bleeder Plug

z Gasket

Caliper

z Sliding Bushing

Disc

Torque Plate

107 (1090, 79)

29 (300, 21)

8.3 (85, 74 in.·lbf)

Piston Seal

Piston

Piston Boot

Boot Ring

Sliding Pin

z Dust Boot

Pad Support Plate

z Dust Boot

Sliding Pin

Pad Wear Indicator Plate

Inner Anti–squeal Shim

Lithium soap base glycol grease

z Non–reusable part

Outer Pad

29 (300, 21)

Flexible Hose

Inner Pad

Europe:

BR–32

–

BRAKE

FRONT BRAKE CALIPER

LEXUS RX300   (RM785E)

FRONT BRAKE CALIPER

COMPONENTS

F13379

Bleeder Plug

Except Europe:

Caliper

Piston Seal

Piston

Sliding Pin

Piston Boot

Boot Ring

Torque Plate

Pad Support Plate

Pad Wear Indicator

Inner Anti–squeal Shim

Anti–squeal Shim

Inner Pad

z Gasket

z Sliding Bushing

z Dust Boot

z Non–reusable part

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

Disc brake grease

Lithium soap base glycol grease

Inner Anti–squeal Shim

Anti–squeal Shim

z Dust Boot

Sliding Pin

8.3 (85, 74 in.·lbf)

29 (300, 21)

29 (300, 21)

34 (350, 25)

107 (1090, 79)

Outer Pad

Flexible Hose

–

BRAKE

FRONT BRAKE CALIPER

BR–33

LEXUS RX300   (RM785E)

BR0IP–03

F13273

BR–34

–

BRAKE

FRONT BRAKE CALIPER

LEXUS RX300   (RM785E)

REMOVAL

1.

REMOVE FRONT WHEEL

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

2.

DISCONNECT FLEXIBLE HOSE

(a)

Remove the flexible hose from the shock absorber.
Torque: 29 N·m (300 kgf·cm, 21 ft·lbf)

(b)

Remove the union bolt and 2 gaskets from the caliper,
then disconnect the flexible hose from the caliper.
Torque: 29 N·m (300 kgf·cm, 21 ft·lbf)

HINT:
At the time of installation, install the flexible hose lock securely
in the lock hole in the caliper.
(c)

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

3.

REMOVE CALIPER

(a)

Remove the 2 installation bolts.
Torque: 34 N·m (350 kgf·cm, 25 ft·lbf)

(b)

Remove the caliper from the torque plate.

4.

REMOVE 2 PADS WITH ANTI–SQUEAL SHIMS

5.

REMOVE 2 PAD SUPPORT PLATES

NOTICE:
At the time of installation, there should be no oil or grease
adhering to the friction surfaces of the pads or disc.

BR0IQ–04

R00121

R00122

R00123

F13274

–

BRAKE

FRONT BRAKE CALIPER

BR–35

LEXUS RX300   (RM785E)

DISASSEMBLY

1.

REMOVE BOOT RING AND PISTON BOOT

Using a screwdriver, remove the boot ring and piston boot.

2.

REMOVE PISTON FROM CYLINDER

(a)

Put a piece of cloth or equivalent between the piston and
the caliper.

(b)

Use compressed air to remove the piston from the cylin-
der.

CAUTION:
Do not place your fingers in front of the piston when using
compressed air.

3.

REMOVE PISTON SEAL FROM CYLINDER

Using a screwdriver, remove the piston seal.
4.

REMOVE SLIDING PINS AND DUST BOOTS

(a)

Remove the 2 sliding pins from the torque plate.

NOTICE:
At the time of reassembly, insert the sliding pin with sliding
bushing into the upper part, and insert the sliding pin with-
out sliding bushing into the lower part.
(b)

Remove the sliding bushing from the upper side of the
sliding pin.

(c)

Using a screwdriver and hammer, tap the 2 dust boots.

HINT:
At the time of reassembly, use a 24 mm socket and hammer, tap
in the 2 new dust boots.
NOTICE:
At the time of reassembly, confirm that the metal plate por-
tion of the dust boot fits snugly in the torque plate.