Second Brake Piston
SECOND BRAKE PISTONCOMPONENTS:
DISASSEMBLY
1. REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
a) Place SST on the piston return spring and compress the piston return spring with a press.
SST 09387-00060
b) Using a screwdriver, remove the snap ring.
c) Remove the piston return spring from the 2nd brake cylinder.
2. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
3. REMOVE 2ND BRAKE PISTON
a) 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 CYLINDER O-RING
a) Using a screwdriver, remove the 2 O-rings from the 2nd brake cylinder.
INSPECTION
1. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
a) Using a vernier caliper, measure the free length of the spring together with the spring seat.
Standard free length: 14.65 mm (0.5768 inch)
REASSEMBLY
1. INSTALL 2ND BRAKE CYLINDER O-RING
a) Install 2 new O-rings to the 2nd brake cylinder.
NOTICE: Be careful not to damage the O-rings.
2. INSTALL 2ND BRAKE PISTON
a) Coat 2 new O-rings with ATF and install them in the 2nd brake cylinder.
b) Be careful not to damage the O-rings and press in the 2nd brake piston into the 2nd brake cylinder with your hands.
3. INSTALL 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
a) Install the piston return spring.
b) Place SST on the piston return spring, and compress the piston return spring with a press.
SST 09387-00060
c) Using a screwdriver, install the snap ring.
NOTICE: Be sure the end gap of the snap ring is not aligned with the piston return spring claw.