- Check gap at 12 &6 o’clock position.
- Check straight edge at top.
- Use shims to adjust the motor height & gap at 12 & 6 o’clock position.
- Then check straight edge and gap at 3 & 9 o’clock position.
- Use the motor jack to adjust it.
- Good for large diameter hub with short distance shaft end.
>>>Reverse periphery method
- Better than laser sighting method.