Input Shaft Seal

Input Shaft Seal

WARNING: Before beginning any service procedure, REFER to Safety Warnings . Failure to follow this instruction may result in serious personal injury.

Special Tool(s)






Removal

1. Remove the PTU (Power Transfer Unit). REFER to Power Transfer Unit (PTU) .

2. Using 307-003 (T57L-500-B) , secure the PTU (Power Transfer Unit) to the bench.






3. Remove the compression seal and discard.





4. NOTICE: Do not press the seals lower than specified. Excessive force will damage the bearing below the seals.

NOTE: Both seals will need to be pressed lower into the PTU (Power Transfer Unit) input shaft opening to break the seals outer sealant loose from the PTU (Power Transfer Unit).

NOTE: There is approximately a 5 mm (0.197 in) air gap between both seals and approximately 1 mm (0.039 in) air gap between the inner seal and the bearing race.
Using 206-040 (T88T-2598-F) , press the outer seal downward until the lower seal contacts the bearing race.






5. Position the 308-777 /1 above the PTU (Power Transfer Unit) input shaft opening.





6. Insert the 308-777 /2 into one of the screw guide holes. Press the 308-777 /2 downward until the shoulder of the punch touches the screw guide.





7. NOTE: Do not overtighten the screws. Turn the 308-777 /3 until they are seated into the screw guide holes.
Install a 308-777 /3 into the screw guide hole.





8. Insert the 308-777 /2 into the opposing screw guide hole. Press the 308-777 /2 downward until the shoulder of the punch touches the screw guide.





9. Install a 308-777 /3 into the screw guide hole.





10. Using the screw guide and 100-001 (T50T-100-A) , remove the 2 seals and discard.





11. Using a non-marring tool, remove any excess red sealant material from the PTU (Power Transfer Unit) input shaft opening.

12. Drain the PTU (Power Transfer Unit).

- Position the PTU (Power Transfer Unit) output flange upward and tilt the PTU (Power Transfer Unit) approximately 30 degrees toward the LH (Left Hand) seal bore to allow the fluid to drain from the PTU (Power Transfer Unit) input shaft opening.

Installation

1. Clean the PTU (Power Transfer Unit) input shaft opening.





2. Position the inner seal above the PTU (Power Transfer Unit) input shaft opening with the spring facing toward the PTU (Power Transfer Unit). Using 308-777 /4 and 205-153 (T80T-4000-W) , install the seal.





3. Position the outer seal above the PTU (Power Transfer Unit) input shaft opening with the spring facing away from the PTU (Power Transfer Unit). Using 308-777 /5 and 205-153 (T80T-4000-W) , install the seal.





4. Install the new compression seal.





5. Install the PTU (Power Transfer Unit). REFER to Power Transfer Unit (PTU) .

6. Fill the PTU (Power Transfer Unit) as necessary. REFER to Power Transfer Unit (PTU) Draining and Filling .