Using a circlip pliers, remove the retaining circlip from the gear wheel.

Remove the gear from the shaft. If you are unable to remove the gear, use a puller.

Don’t lose that little metal bar that connects the gear to the drive shaft.

It may fall off when the wheel is removed or remain on the notch of the motor shaft.

Unscrew the two screws holding the wheel guard in place with a Phillips screwdriver.

Remove the wheel guard.

Unscrew with a 5 mm wrench the 4 screws fixing the shaft protection.

In order to remove the shaft protection, pass a small flat screwdriver between the motor block and the shaft protection.

Tap the screwdriver lightly to help it pass between the elements. Perform the operation in each corner of the protection.

Once a gap is created, do the same with a larger flathead screwdriver. Lever out the guard with the help of the motor block.

The drive shaft can be removed.

If the transmission shaft is hard to pull out, unscrew the 4 screws holding the electric motor and lift it slightly to separate it from the shaft.

If necessary, you can remove the electric motor completely from the block.

Proceed with the extraction of the axis.

Insert the new motor shaft by pushing it to the bottom of the motor. The bearing must be flush with the motor block.

Replace the plastic protection of the axis.

Be sure to have one of the gear guard mounting holes at the top left of the plastic guard.

Screw the cover back on the motor block.

Lightly screw the screws on the support in turn so that the protection is evenly and centrally inserted.

Replace and secure the gear guard.

Replace the metal bar in the notch of the axle.

Put the gear back on the motor shaft. Present it with the indentation towards you.

Push the gear wheel as far as it will go towards the motor block so that you can see the groove where the snap ring passes through.

Replace the snap ring on the shaft.

You can now put the electric motor back in place if you had to remove it. You can then reinstall the motor unit on the gate.