OD Support Assembly

OD Support Assembly





Disassembled View

Disassembly





1. Check OD brake piston movement.
Place the OD support assembly onto the direct clutch assembly.





Apply compressed air into the oil passage as shown, and be sure that the OD brake piston moves smoothly.
2. Remove the thrust bearing.
3. Remove the race.
4. Remove the thrust washer (plastic).





5. Place special tool on the spring retainer, and compress the return spring with a shop press.
Spring compressor: J-37233
Remove the snap ring with a screwdriver.
6. Remove the piston return spring.





7. Place the OD support onto the direct clutch assembly.
Hold the OD brake piston so it is not slanted and apply compressed air into the passage to remove the OD brake piston.
Remove the OD brake piston.
8. Remove the O-ring and oil seal rings from OD support.

Inspection and Repair
Make necessary correction or parts replacement if wear, damage or any abnormal conditions are found through inspection.





1. Check piston return spring
Using calipers, measure the free length of the return spring.
Standard length: 17.2 mm (0.677 inch)

Reassembly





1. Coat the two oil seal rings with ATF.
Contract the oil seals as shown, and install them onto the OD support.

NOTE: Do not spread the ring ends more than necessary.

2. Coat two new O-rings with ATF and install them on the OD brake piston.





3. Being careful not to damage the O-rings, press the brake piston into the OD support, using both hands.





4. Install piston return spring.





5. Place special tool on the spring retainer, and compress the return spring with a shop press.
Spring compressor: J-37233
Install the snap ring with a screwdriver.
Be sure the end gap of the snap ring is not aligned with cutout portion of the OD support.





6. Coat the thrust washer (plastic) with petroleum jelly and install it onto the OD support.

NOTE: Make sure that the lug fits into the hole on the OD support.





7. Coat the race with petroleum jelly, and install it onto the OD support.





Race diameter (Reference)





8. Turn over OD support.
Coat the two races with petroleum jelly, and install them onto the OD support.





Race and bearing diameter (Reference)





Inside Outside





9. Check OD brake piston movement.
Place the OD support assembly onto the direct clutch assembly.





Apply compressed air into the oil passage as shown, and be sure that the OD brake piston moves smoothly.