Case: Service and Repair

Special Tools:

DISASSEMBLY

1. Remove and discard the final drive lube tube.

2. Remove and discard the final drive lube tube seal.

3. Remove the parking pawl ratcheting spring.

4. Remove the manual control lever bolt.
5. Remove the manual control lever assembly,

6. Remove the manual control lever shaft assembly.

7. Remove the parking pawl shaft retainer and bolt.

8. Remove the parking pawl shaft.

9. Remove the parking pawl assembly.
1 Remove the parking pawl.
2 Remove the parking pawl return spring.

10. Remove and discard the manual control lever seal.

CAUTION: Do not damage the transaxle case bore during seal removal.

11. Remove the manual valve actuator rod (Z-1ink).

12. Remove and discard the manual valve detent lever shaft retaining pin.

CAUTION: Do not damage the transaxle case sealing surface.

NOTE: There are two retaining pins, one on either side of the manual valve detent lever.

13. Remove the manual valve detent lever shaft retaining pin.

CAUTION: Do not damage the transaxle case sealing surface.

14. Remove the manual valve detent lever and shaft assembly.
1 Pull the manual valve detent lever and manual valve detent lever shaft from the transaxle case.
2 Lift the manual valve detent lever from the transaxle case.

15. Remove and discard the manual control seal.

CAUTION: Do not damage seal bore in case during seal removal.

16. Remove the line pressure port plug.

17. Remove and discard the cooler tube fitting.

18. If necessary, remove the (number 18) driven sprocket bearing assembly from transaxle case.
1 Install Needle Bearing Remover/Replacer into the transaxle.
2 Position the Threaded Draw Bar.

NOTE: The driven sprocket bearing (number 18) can be replaced once before transaxle case replacement becomes necessary. If the (number 18) driven sprocket bearing has been replaced previously and requires a second replacement the transaxle case must be replaced.

19. Remove the (number 18) driven sprocket bearing assembly.
1 Position Needle Bearing Remover/Replacer.
2 Position the Threaded Draw Bar.
3 Remove the (number 18) driven sprocket bearing.
20. Clean all components with a suitable solvent and use moisture-free compressed air to dry all parts and clean fluid passages. Check the following before assembling:
- Final drive lubrication tube for damage
- Manual control linkage for damage or wear
- Case mating surfaces for nicks or deformation
- Bearing wear
- Support area wear

WARNING: IN ORDER TO AVOID INJURY, EYE PROTECTION SHOULD BE WORN WHEN CLEANING COMPONENTS WITH COMPRESSED AIR. FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN PERSONAL INJURY.

ASSEMBLY

1. If necessary install the (number 18) driven sprocket bearing into the transaxle case.
1 Position the Needle Bearing Remover/Replacer.
2 Position the Threaded Draw Bar.

NOTE: The driven sprocket bearing (number 18) can be replaced once before transaxle case replacement becomes necessary. If the (number 18) driven sprocket bearing has been replaced previously and requires a second replacement the transaxle case must be replaced.

2.

CAUTION: Do not lubricate the outer surface of the (number 18) driven sprocket bearing assembly.

3. Install the driven sprocket bearing (number 18) assembly by pressing it into the transaxle case.
1 Position the Needle Bearing Remover/Replacer.
2 Position the Threaded Draw Bar.
3 Install the (number 18) driven sprocket bearing.

NOTE: The (number 18) driven sprocket bearing must be installed with the lettering on the needle bearing surface facing towards the Needle Bearing Replacer.

4. Install the cooler tube fitting.

5. Install the line pressure port plug.

6. Replace the manual control seal.

7. Install the manual valve detent lever assembly, and the manual valve detent lever shaft assembly.
1 Position the manual valve detent lever into the transaxle case.
2 Install the manual valve detent lever shaft into the transaxle case and lever.

8. Replace the manual shaft retaining pin.

9. Replace the manual valve detent lever shaft retaining pin.
- Verify the manual valve detent lever shaft rotates without binding.

CAUTION: Do not allow the manual shaft retaining pin to contact the transaxle case.

10. Install the manual valve actuator rod (Z-link).

11. Install the parking pawl assembly.
1 Install the parking pawl return spring.
2 Install the parking pawl.

12. Install the parking pawl shaft.

13. Install the parking pawl shaft retainer and bolt.

14. Replace the manual control lever seal.

15. Install the manual control lever shaft assembly.

NOTE: Lubricate the manual control lever inner shaft prior to installation.

16. Install the parking pawl ratcheting spring.

NOTE: Verify that the actuating cam rotates freely.

17. Install the manual control lever assembly and bolt.

NOTE: Hand-tighten the manual control lever bolt; it will be torqued after linkage adjustment.

18. Replace the final drive lube tube seal.

19. Install the final drive lube tube into the seal.

20. Install the final drive lube tube into the case.