Second Brake

COMPONENTS

DISASSEMBLY OF SECOND BRAKE

1. REMOVE THRUST WASHER FROM SECOND BRAKE DRUM

2. CHECK SECOND BRAKE PISTON MOVING
Make sure the second brake piston moves smoothly when applying and releasing low-pressure compressed air to the second brake drum.

3. REMOVE PISTON RETURN SPRING

a. Place SST on the spring retainer, and compress the return spring with a shop press.
SST 09350-30020 (09350-07040)
b. Remove the snap ring with snap ring pliers.
c. Remove the spring retainer.

d. Remove the piston return spring.

4. REMOVE SECOND BRAKE PISTON
a. Hold the second brake piston with hand, apply compressed air to the second brake drum to remove the second brake piston.
b. Remove the second brake piston.
c. Remove the two O-rings from the piston.

INSPECTION OF SECOND BRAKE

INSPECT DISC, PLATE AND FLANGE
Check to see if the sliding surface of the disc, plate and flange are worn or burnt. If necessary, replace them.

HINT:
- If the lining of the disc is peeling off or discolored, or even if parts of the printed numbers are defaced, replace all discs.
- Before assembling new discs, soak them in ATF for at least two hours.

ASSEMBLY OF SECOND BRAKE

1. INSTALL SECOND BRAKE PISTON
a. Coat new O-rings with ATF and install them on the second brake piston.
b. Being careful not to damage the O-rings, press in the second brake piston into the second brake drum with both hands.

2. INSTALL PISTON RETURN SPRING

a. Install the piston return spring.
b. Install the spring retainer.

c. Place SST on the spring retainer, and compress the return spring with a shop press.
SST 09350-30020 (09350-07040)
d. Install the snap ring with snap ring pliers.

3. CHECK SECOND BRAKE PISTON MOVING
Make sure the second brake piston moves smoothly when applying and releasing low-pressure compressed air to the second brake drum.

4. INSTALL THRUST WASHER
Coat the thrust washer with petroleum jelly and install it.

HINT: Make sure that the cutout portions of thrust washer match teeth of the spring retainer.