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Home >> Lexus >> 2010 >> RX 350 FWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes (Hydraulic) (Service Information) >> Brake Master Cylinder >> REMOVAL (To 8/2009) >> Removal

REMOVAL (To 8/2009): Removal

NOTE:

Make sure to release vacuum from the brake booster before removing the master cylinder from the brake booster.

  1. PRECAUTION (w/ Air Suspension) 
    NOTE:

    Be sure to read Precaution thoroughly before servicing. Refer to PRECAUTION .

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:
    • After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and setting. As a result, after turning the engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal (w/ Navigation System for HDD).
    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .
  3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    HINT: 

    Refer to the instructions for Removal of the windshield wiper motor and link assembly. Refer to REMOVAL .

  4. REMOVE V-BANK COVER SUB-ASSEMBLY  . Refer to REMOVAL - Step 34
  5. REMOVE NO. 2 AIR CLEANER INLET  . Refer to REMOVAL - Step 35
  6. REMOVE NO. 1 AIR CLEANER INLET  . Refer to REMOVAL - Step 36
  7. REMOVE BATTERY  . Refer to REMOVAL - Step 37
  8. REMOVE AIR CLEANER ASSEMBLY  . Refer to REMOVAL - Step 13
  9. REMOVE FRONT SHOCK ABSORBER CAP LH (w/ Air Suspension)  . Refer to REMOVAL - Step 3
  10. REMOVE FRONT SHOCK ABSORBER CAP RH (w/ Air Suspension) 

    HINT: 

    Use the same procedure for the RH side and LH side.

  11. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 
    1. Disconnect the connector (w/ Windshield Deicer).
      Fig 1: Disconnect the connector (w/ Windshield Deicer)
      GTY264964Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the grommet and clamp, and separate the wire harness.
    3. Remove the 6 nuts, 4 bolts and outer cowl top panel sub-assembly.
      Fig 2: Remove the 6 nuts, 4 bolts
      GTY264767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. DRAIN BRAKE FLUID 
  13. DISCONNECT NO. 1 RESERVOIR TUBE 
    1. Slide the clip and disconnect the No. 1 reservoir tube from the brake master cylinder reservoir sub-assembly.
      Fig 3: Slide the clip and disconnect the No. 1 reservoir tube
      GTY264534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. DISCONNECT BRAKE LINE 
    1. Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly.
      Fig 4: Disconnect The 2 Brake Lines
      GTY264379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY 
    1. Remove the 2 nuts and brake master cylinder sub-assembly.
      Fig 5: Remove the 2 nuts
      GTY264168Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 matter to contaminate the master cylinder piston. If foreign matter gets on the piston, remove it by using 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.
    2. Remove the O-ring from the brake master cylinder sub-assembly.
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