Drive Chain: Service and Repair

CENTER SUPPORT DISASSEMBLY/ASSEMBLY

Disassembly





1. Install the Forward-Low/Reverse Return Spring Compressor on the forward (1, 2, 3, 4) clutch return spring.

NOTE:The forward clutch piston in the center support is the side of the center support with the short legs.






2. Using Forward-Low/Reverse Return Spring Compressor and a press, compress the forward (1, 2, 3, 4) clutch return spring and remove the snap ring.





3. Remove the Forward-Low/Reverse Return Spring Compressor.





4. Remove the return spring from the Forward-Low/Reverse Return Spring Compressor or the forward (1, 2, 3, 4) clutch piston.





5. Apply 483 kPa (70 psi) of air pressure to the forward (1, 2, 3, 4) clutch piston port and remove the forward (1, 2, 3, 4) clutch piston.





6. Install the Forward-Low/Reverse Return Spring Compressor on the low/reverse return spring.





7. Using Forward-Low/Reverse Return Spring Compressor and a press, compress the low/reverse clutch return spring and remove the snap ring.





8. Remove the Forward-Low/Reverse Return Spring Compressor.





9. Remove the low/reverse clutch return spring.





10. Apply 483 kPa (70 psi) of air pressure to the low/reverse clutch piston port and remove the low/reverse clutch piston.

Assembly

1. Clean and inspect the center support for damage. Install a new center support if necessary.





2. Install the Seal Protector on the center support.





3. Lubricate the sealing surfaces of the low/reverse piston with petroleum jelly.





4. Position the low/reverse clutch piston on the Seal Protector 307-628 and push it down into the center support.





5. Remove the Seal Protector.





6. Install the low/reverse piston return spring.





7. Install the Forward-Low/Reverse Return Spring Compressor on the low/reverse piston return spring.





8. Using Forward-Low/Reverse Return Spring Compressor and a press, compress the low/reverse clutch return spring and install the snap ring.





9. Remove Forward-Low/Reverse Return Spring Compressor.





10. Inspect the snap ring to be sure it is seated in the groove on the center support.





11. Turn the center support over and install the Seal Protector and the Seal Protector on the center support.





12. Lubricate the sealing surfaces of the forward (1, 2, 3, 4) clutch piston with petroleum jelly.





13. Position the forward (1, 2, 3, 4) clutch piston on Seal Protector 307-628/2 and Seal Protector 307-629 and push it down into the center support.





14. Remove the Seal Protector and the Seal Protector.





15. Install the forward (1, 2, 3, 4) clutch piston return spring.





16. Install the Forward-Low/Reverse Return Spring Compressor 307-630 on the forward (1, 2, 3, 4) clutch return spring.





17. Using Forward-Low/Reverse Return Spring Compressor 307-630 and a press, compress the forward (1, 2, 3, 4) clutch return spring and install the snap ring.





18. Remove Forward-Low/Reverse Return Spring Compressor 307-630.





19. Inspect the snap ring to be sure it is seated in the groove on the center support.