Second Brake Piston

SECOND BRAKE PISTON

COMPONENTS:

DISASSEMBLY

1. REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
(a) Using SST and a press, remove the snap ring from the 2nd brake piston.
SST 09387-00060
(b) Remove the 2nd brake return spring from the 2nd brake cylinder.

2. 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.

3. 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 vernier calipers, measure the free length of the spring together with the spring seat.
Standard free length: 14.65 mm (0.5768 in.)

REASSEMBLY

1. INSTALL 2ND BRAKE CYLINDER O-RING
(a) Coat 2 new 2nd brake cylinder O-rings with ATF, and install them into the 2nd brake cylinder.

NOTICE: Do not damage the O-rings.

2. INSTALL 2ND BRAKE PISTON
(a) Coat the 2nd brake piston with ATF, and install it into the 2nd brake cylinder.

CAUTION: Do not damage the O-rings when pressing the 2nd brake piston into the 2nd brake cylinder by hand.

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.
(c) Using a screwdriver, install the snap ring.

NOTICE: Make sure that the end gap of the snap ring is not aligned with the piston return spring claw.