No.2 Brake

NO.2 BRAKE





Components

No.2 Brake Disassembly
1. REMOVE PLANETARY SUN GEAR AND NO.1 ONE-WAY CLUTCH





2. CHECK PISTON STROKE OF NO.2 BRAKE
Using a dial indicator, measure the No.2 brake piston stroke while applying and releasing compressed air (392 - 785 kPa, 4 - 8 kgf/cm2, 57 - 114 psi).

Piston stroke: 1.01 - 2.25 mm (0.0398 - 0.0886 inch)

If the values are non-standard, inspect the discs.





3. REMOVE FLANGE
a. Using a screwdriver, remove the snap ring.





b. Remove the flange.





4. REMOVE DISCS AND PLATES
Remove the 3 discs and 3 plates.





5. REMOVE PISTON RETURN SPRING
a. Place Special Service Tools (SST) on the spring seat and compress the return springs with a shop press.
SST 09350-20015 (09369-20040)
b. Using a snap ring expander, remove the snap ring.





c. Remove the piston return spring.





6. REMOVE NO.2 BRAKE PISTON
a. Hold the No.2 brake piston with hand, apply compressed air to the center support to remove the No.2 brake piston.
b. Remove the O-ring from the piston.





c. Remove the O-ring from the center support.

No.2 Brake Inspection





1. 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 Automatic Transmission Fluid (ATF) for at least 15 minutes.

No.2 Brake Assembly
1. INSTALL NO.2 BRAKE PISTON





a. Coat a new O-ring with ATF and install it on the center support.
b. Coat a new O-ring with ATF and install it on the No.2 brake piston.





c. Place SST on the No.2 brake piston.
SST 09350-20015 (09369-20040)
d. Being careful not to damage the O-rings, press in the No.2 brake piston into the center support with both hands.
2. INSTALL PISTON RETURN SPRING





a. Install the piston return spring.
b. Place SST on the spring seat, and compress the return springs with a shop press.
SST 09350-20015 (09369-20040)





c. Install the snap ring with a snap ring expander. Be sure the end gap of the snap ring is not aligned with the spring seat claw.





3. INSTALL PLATES AND DISCS
Install the 3 plates and 3 discs.
Install in order: P=Plate D=Disc
P - D - P - D - P - D
4. INSTALL FLANGE





a. Install the flange, the flat end facing downward.





b. Using a screwdriver, install the snap ring. Be sure the end gap of the snap ring is not aligned with the cutout portion of the center support.





5. CHECK PISTON STROKE OF NO.2 BRAKE
Using a dial indicator, measure the No.2 brake piston stroke while applying and releasing compressed air (392 - 785 kPa, 4 - 8 kgf/cm2, 57 - 114 psi).

Piston stroke: 1.01 - 2.25 mm (0.0398 - 0.0886 inch)

If the piston stroke is less than the limit, parts may have been assembled incorrectly, check and reassemble again.
6. INSTALL PLANETARY SUN GEAR AND NO.1 ONE-WAY CLUTCH