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Brake Master Cylinder: Removal

NOTE: Make sure to release vacuum from the brake booster before removing the master cylinder from the brake booster.
  1. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH  (See REMOVAL )
  2. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH  (See REMOVAL )
  3. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY  (See REMOVAL )
  4. REMOVE WINDSHIELD WIPER MOTOR AND LINK  (See REMOVAL )
  5. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY  (See REMOVAL )
  6. DRAIN BRAKE FLUID 
  7. DISCONNECT NO. 1 RESERVOIR TUBE 
    1. Slide the clip and disconnect the No. 1 reservoir tube from the brake master reservoir assembly.
  8. DISCONNECT BRAKE LINE 
    1. Using a union nut wrench (12 mm), disconnect the 2 brake lines from the brake master cylinder sub-assembly.
      Fig 1: Disconnecting Brake Lines From Brake Master Cylinder Sub-Assembly Using Union Nut Wrench
      G05417882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY 
    1. Remove the 2 nuts and brake master cylinder sub-assembly.
    2. Remove the O-ring from the brake master cylinder sub-assembly.
      NOTE:
      • The master cylinder requires careful handling. Do not allow the master cylinder to receive any impact, such as from being dropped. Do not reuse a master cylinder that has been dropped.
      • Do not strike or pinch the master cylinder piston, and do not cause any damage to the master cylinder piston by any other means.
      • Make sure to release vacuum from the brake booster before removing the master cylinder from the brake booster.
      • When installing the master cylinder to the brake booster, or when removing the master cylinder from the brake booster, make sure that the master cylinder is kept horizontal or its tip faces downward (the piston faces upward) to prevent the master cylinder piston from falling out.
      • Do not allow any foreign objects to contaminate the master cylinder piston. If a foreign object gets on the piston, remove it by using a shop rag or a piece of cloth and then apply an even layer of lithium soap base glycol grease around the circumference (sliding part) of the piston.
      • Do not use any other type of grease or fluid.
      3. Fig 2: Identifying Brake Master Cylinder Sub-Assembly Nuts
      G05417918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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