Disassembly

NOTE: The NV T350 (A-578) transaxle internal components can be serviced only by separating the gear case from the bellhousing case.

CAUTION: The transaxle output shaft is serviced as a unit. No disassembly and reassembly is possible. Damage to the transaxle may result.

1. Place transaxle on bench.

Case Bolts:

2. Remove shift levers. Remove transaxle case half bolts.

Transaxle Case Halves:

Separate Case Halves:

3. Place two screwdrivers into the slots provided in the case halves near the dowels. Separate the case halves.

Bellhousing Case Half Removal:

4. Remove bellhousing half from gear case half.
5. Remove output shaft roller bearing from output shaft.

Differential Assembly Removal:

6. Remove differential assembly.

Reverse Idler Shaft Bolt Removal:

Reverse Idler Gear Removal:

7. Remove reverse idler shaft bolt. Remove reverse idler gear.

Screws Retaining Reverse Fork Bracket:

Remove Reverse Fork Bracket:

8. Remove two screws retaining reverse fork bracket. Remove reverse fork bracket and reverse cam blockout assembly.

Remove Selector Shaft Spacer:

9. Using snap-ring pliers, remove selector shaft spacer.

Selector Shaft:

10. Pull the selector shaft shift pin out of the slot in the blocker assembly. Turn selector shaft up and out of the way.

Transaxle Cover Removal:

End Cover:

11. Remove transaxle end cover.

Snap Rings Retaining Bearings:

12. Remove two snap rings retaining the output shaft and the input shaft to the bearings.

Bench Fixture:

13. Using bench fixture and shims provided (Miller tools # 6785, 6785-1, and 6785-2), turn transaxle over. Install transaxle onto bench fixture. Verify shim spacers are in position on bench fixture. Install transaxle into shop press.

Bearing Fixture:

14. Install bearing fixture Miller tool #6768 onto transaxle end bearings. Verify tool is properly aligned to input and output shafts.

CAUTION: The oil dams in the input and output shafts can be damaged while pressing on the shafts if the bearing fixture is not used properly.

Pressing Gears Out Of Case:

15. Install transaxle gear case into shop press. Press output and input shaft assemblies out of case.
16. Remove transaxle from press.

Transaxle Case Removal:

Oil Feed Trough:

17. Carefully remove transaxle case from the shaft assemblies and bench fixture. Be sure the oil-feed trough to the end bearings is not damaged.

Reverse Brake Shim:

Reverse Brake Friction Cone:

Reverse Brake Blocking Ring:

Reverse Brake Needle Bearing:

Reverse Brake Race:

18. TRANSAXLE W/REVERSE BRAKE: Remove the reverse brake blocking ring, shim, reverse brake friction cone, bearing and race from the input shaft assembly. TRANSAXLE W/O REVERSE BRAKE: Remove plastic spacer from the input shaft assembly.

Shift Blocker Removal:

19. Remove the shift blocker assembly from the bench fixture.

1-2 Shift Fork Removal:

20. Remove the 1-2 shift fork from the output shaft.

Gear Train Removal:

21. Remove input and output shaft assemblies from bench fixture.

CAUTION: The output shaft assembly is serviced as an assembly. Do not try to repair any component on the output shaft. If the 1-2 synchronizer or gear fails, it is necessary to replace the complete output shaft assembly.