How to Replace an AEG Motor Pinion Gear

Replace a motor pinion only after confirming the motor-shaft interface, pinion dimensions and bevel-gear compatibility. Pull-on, press-on and set-screw designs require different tools; forcing the wrong method can damage the shaft or motor bearings.

JVAN D-type pinion gear. Confirm that the motor shaft uses the matching interface before installation.

Remove and compare

1. Disconnect the battery and remove the motor without pulling on its wires.
2. Record the original pinion position.
3. Use the correct puller or release method for the existing design.
4. Compare bore, shaft interface, tooth form, height and retention method.

The set screw and shaft flat must align; the included tools do not replace the fit check.

Install and set mesh

Seat the pinion to the documented position, secure it using the specified method and check that it runs true. Reinstall the motor and set motor height against the bevel gear. Stop if the mesh binds, skips or produces abnormal wear. A new pinion does not by itself guarantee more torque, speed or quieter operation.

Review the JVAN D-type motor pinion gear after confirming the shaft and gear interface.