Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Disassembly

Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual / Brake / Brake (rear) / Rear Brake / Disassembly

DISASSEMBLY

CAUTION / NOTICE / HINT

NOTICE:

  • If the rear disc brake cylinder assembly has been disassembled, perform air bleeding for the rear disc brake cylinder assembly.

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  • Make sure not to scratch, damage or apply excessive force to any of the internal components of the rear disc brake cylinder.
  • To prevent rusting on the inside of the rear disc brake cylinder, perform the rear disc brake piston removal and installation quickly.
  • Do not clean the interior of the rear disc brake cylinder with brake cleaner.
  • Do not remove any parts unless specifically instructed to do so, and only remove the parts indicated.
  • Make sure to enter pad replacement mode before removing the rear disc brake cylinder assembly.

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PROCEDURE

1. REMOVE CYLINDER BOOT

(a) Using a screwdriver with its tip wrapped with protective tape, remove the cylinder boot from the rear disc brake cylinder.

NOTICE:

Do not damage the inner surface or cylinder boot groove of the rear disc brake cylinder.

*a

Protective Tape

2. REMOVE REAR DISC BRAKE PISTON

(a) Place a piece of cloth between the rear disc brake piston and the rear disc brake cylinder.

*a

Cloth

(b) Apply compressed air to remove the rear disc brake piston from the rear disc brake cylinder.

CAUTION:

  • Do not hold the rear disc brake cylinder with any part of your hand between the rear disc brake cylinder and rear disc brake piston.
  • Do not place any part of your hand in front of the rear disc brake piston when using compressed air as a severe injury may result.

NOTICE:

Do not allow any brake fluid to spatter.

3. REMOVE PISTON SEAL

(a) Using a screwdriver with its tip wrapped with protective tape, remove the piston seal from the rear disc brake cylinder.

NOTICE:

  • Do not damage the inner surface or piston seal groove of the rear disc brake cylinder.
  • Do not allow the nut to rotate. If the nut is accidentally allowed to rotate, return it to its original position.

*a

Protective Tape

*b

Nut

4. REMOVE REAR DISC BRAKE BLEEDER PLUG CAP

5. REMOVE REAR DISC BRAKE BLEEDER PLUG

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