Second Brake Piston Disassembly

Transmission. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
U241E Automatic Transaxle. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY

  2. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY

  3. REMOVE 2ND BRAKE PISTON

  4. REMOVE 2ND BRAKE PISTON O-RING

Second Brake Piston -- Disassembly



1. REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Second Brake Piston Disassembly

  1. Place SST on the return spring and compress.

    SST
    09387-00060

  1. Using a screwdriver, pry out the snap ring.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Second Brake Piston Disassembly

  1. Remove the piston return spring.



2. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Second Brake Piston Disassembly

  1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

    Standard free length:
    16.61 mm (0.6539 in.)


3. REMOVE 2ND BRAKE PISTON


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Second Brake Piston Disassembly

  1. Hold the 2nd brake piston and apply compressed air (392 kPa, 4.0 kgf/cm2, 57 psi) to the 2nd brake cylinder to remove the 2nd brake piston.



4. REMOVE 2ND BRAKE PISTON O-RING


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Second Brake Piston Disassembly

  1. Remove the 2 O-rings from the 2nd brake piston.