Brake Master Cylinder: Installation: Installation

1. Install a new O-ring to the brake master cylinder sub-assembly.
2. Install the brake master cylinder sub-assembly onto the brake booster.
   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 off.
   • Do not use any other type of grease or fluid.
3. Install the 2 nuts.

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

4. Using a union nut wrench 12 mm, connect the 2 brake tubes to the brake master cylinder sub-assembly.
   Fig 1: Identifying Brake Lines & Union Nuts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   NOTE:

   Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench. Refer to PRECAUTION .

5. Engage the clamp and connect the brake fluid level warning switch connector.

Refer to BLEEDING 

Refer to INSTALLATION