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Home >> Toyota >> 2019 >> Sienna Limited, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) (Service Information) >> Brake Master Cylinder >> Installation [12/2015 - 08/2016] >> Procedure

Installation [12/2015 - 08/2016]: Procedure

  1. INSPECT AND ADJUST BRAKE BOOSTER PUSH ROD 

    See step  1

  2. INSTALL BRAKE MASTER CYLINDER SUB-ASSEMBLY 
    1. Install a new O-ring to the brake master cylinder sub-assembly.
    2. Install the brake master cylinder sub-assembly to the brake booster assembly with the 2 nuts.

      Torque: 13 N*m (127 kgf*cm, 9 ft.*lbf) 

      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.
      • 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 based glycol grease around the circumference (sliding part) of the piston.
      • Do not use any other type of grease or fluid.
    3. Using a union nut wrench (12 mm), connect the 2 brake lines to the brake master cylinder sub-assembly.

      Torque: 20 N*m (199 kgf*cm, 14 ft.*lbf) 

      NOTE:

      Use the formula to calculate special torque values for situations where the union nut wrench is combined with a torque wrench (Refer to PRECAUTION [12/2015 - 08/2016] ).

  3. CONNECT NO. 1 RESERVOIR TUBE 
    1. Connect the No. 1 reservoir tube to the brake master cylinder reservoir sub-assembly.
  4. INSTALL AIR CLEANER AND HOSE 

    Refer to PROCEDURE - Step 4

  5. INSTALL BATTERY 

    Refer to PROCEDURE - Step 61

  6. INSTALL AIR CLEANER INLET COVER ASSEMBLY SEAL 

    Refer to PROCEDURE - Step 62

  7. FILL RESERVOIR WITH BRAKE FLUID 

    See step  2

  8. BLEED BRAKE MASTER CYLINDER 

    See step  3

  9. BLEED BRAKE LINE 

    See step  4

  10. BLEED BRAKE ACTUATOR 

    See step  5

  11. INSPECT FOR BRAKE FLUID LEAK 
  12. INSPECT FLUID LEVEL IN RESERVOIR 

    See step  1