Second Brake Piston: Disassembly

REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
1. Place SST on the 2nd brake piston return spring sub-assembly and compress.
  SST 09387-00060
2. Using a screwdriver, remove the snap ring.
  
  Fig 1: Removing Snap Ring
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2nd brake piston return spring subassembly from the 2nd brake cylinder.
INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY (See INSPECTION )

Fig 2: Removing 2nd Brake Piston Return Spring Subassembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE 2ND BRAKE PISTON
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.
  NOTE: Take care not to splash ATF when air-blowing.
  
  Fig 3: Applying Compressed Air To 2nd Brake Cylinder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE 2ND BRAKE CYLINDER O-RING
1. Using a screwdriver, remove the 2 2nd brake cylinder O-rings from the 2nd brake cylinder.
  
  Fig 4: Removing 2nd Brake Cylinder O-Rings From 2nd Brake Cylinder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002