Disassembly
DISASSEMBLYThe T350 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.
2. Remove the clutch release bearing and lever. Move the release fork and bearing to an in-line position. Grasp the release lever with two hands in the pivot stud socket area. Pull with even pressure to release the lever from the pivot stud.
CAUTION: Do not use a screwdriver or pry bar to release the lever as this may cause damage to the lever and/or clip.
3. Remove shift levers by driving out the roll pins.
4. Remove transaxle case half bolts (Fig. 16).
5. Place two screwdrivers into the slots provided in the case halves near the dowels (Fig. 17). Separate the case halves (Fig. 18).
6. Remove bellhousing half from gear case half (Fig. 19).
7. Remove output shaft roller bearing from output shaft.
8. Remove differential assembly from housing (Fig. 20).
9. Remove reverse idler shaft bolt (Fig. 21).
10. Remove reverse idler shaft (Fig. 22).
11. Remove reverse idler gear and spacer (Fig. 23).
12. Remove two screws retaining reverse fork bracket (Fig. 24). Remove reverse fork bracket and reverse cam blockout assembly (Fig. 25).
13. Using snap-ring pliers, remove selector shaft spacer (Fig. 26).
14. Pull the selector shaft shift pin out of the slot in the blocker assembly. Turn selector shaft up and out of the way (Fig. 27).
15. Remove transaxle end cover (Fig. 28) (Fig. 29).
16. Remove two snap rings retaining the output shaft and the input shaft to the bearings (Fig. 30).
17. Using bench fixture and shims provided (Miller tools # 6785, 6785-1, and 6785-2), turn transaxle over. Install transaxle onto bench fixture (Fig. 31). Verify shim spacers are in position on bench fixture. Install transaxle into shop press.
18. Install bearing fixture Miller tool #6768 onto transaxle end bearings (Fig. 32). 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.
19. Install transaxle gear case into shop press. Press output and input shaft assemblies out of case (Fig. 33).
20. 22Remove transaxle from press.
21. Carefully remove transaxle case from the shaft assemblies and bench fixture (Fig. 34). Be sure the oil-feed trough to the end bearings is not damaged (Fig. 35).
22. Remove the reverse brake friction cone and blocking ring from the input shaft assembly (Fig. 36) (Fig. 37).
23. Remove the shift blocker assembly from the bench fixture (Fig. 38).
24. Remove the 1-2 shift fork from the output shaft (Fig. 39).
25. Remove input and output shaft assemblies from bench fixture (Fig. 40).
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.
CLEANING
Clean the gears, bearings, shafts, synchronizers, thrust washers, oil feeder, shift mechanism, gear case, and bellhousing with solvent. Dry all parts except the bearings with compressed air. Allow the bearings to either air dry or wipe them dry with clean shop towels.
INSPECTION
Inspect the gears, bearings, shafts and thrust washers. Replace the bearings and cups if the rollers are worn, chipped, cracked, flat spotted, or brinnelled, or if the bearing cage is damaged or distorted. Replace the thrust washers if cracked, chipped, or worn. Replace the gears if the teeth are chipped, cracked, or worn thin. Inspect the synchronizers. Replace the sleeve if worn or damaged in any way. Replace the stop rings if the friction material is burned, flaking off, or worn. Check the condition of the synchro keys and springs. Replace these parts if worn, cracked, or distorted.