Inspection

Gear Components: Inspection

Gears and Shafts

- Check shafts for cracks, wear or bending.





- Check gears for excessive wear, chips or cracks.






Synchronizers

- Check spline portion of coupling sleeves, hubs, and gears for wear or cracks.





- Check baulk rings for cracks or deformation.
- Check shifting inserts for wear or deformation.
- Check insert springs for deformation.
- Measure wear of main drive, 1st and OD baulk rings. Refer to [Service Data and Specifications] Mechanical Specifications.





- If the clearance is smaller than the wear limit, replace baulk ring.
- Measure wear of 2nd and 3rd double baulk rings using Tool.











a Place baulk rings in position on synchronizer cone.
b While holding baulk rings against synchronizer cone as far as it will go, measure the dimensions (A) and (B).






- If the dimension (A) or (B) is smaller than the wear limit, replace outer baulk ring, inner baulk ring and synchronizer cone as a set.





- Measure wear of reverse baulk ring.






a Place baulk ring in position on reverse cone.
b While holding baulk ring against reverse cone as far as it will go, measure the dimension (A) with dial indicator.






c If the dimension (A) is larger than the wear limit, replace baulk ring.

Bearings

- Make sure bearings roll freely and are free from noise, crack, pitting or wear.