General Notes

Ring Gear And Pinion, Adjusting

General notes
^ Careful adjustment of the drive pinion and ring gear is essential for long life and quiet running of the final drive. During production, the drive pinion and ring gear are matched and checked on a special testing machine to ensure proper contact pattern and quiet running in both directions of rotation.
^ The position of quietest running is determined by moving the drive pinion in an axial direction, with the ring gear being constantly raised out of zero-play meshing to a point where the torsion backlash varies within a specified tolerance.
^ The deviation "r" is measured in relation to the master gauge Ro for the drive gear sets supplied as service parts and this value is inscribed on the outer circumference of the ring gear. The drive gear set - drive pinion and ring gear - must always be replaced together.