How to change the rear wheel on the Husqvarna Automower 105/305/308
Here is our step by step guide on how to change the rear wheel on the Husqvarna Automower 105/305/308 and also the Gardena R40/R45/R50li models
The rear wheel only rotates forwards and backwards as it has no pivoting axle. When the robot makes lateral movements, the wheels slide and as a result wear out over time. You can buy the rear wheel either as a set with bearings and seals or separately. In this guide, we will show you how to transfer the old ball bearings and seals to a new rear wheel.

Changing the rear wheel is a simple process and doesn't require any special tools. See below for step by step instructions.
At the bottom of the page there is a list of the spare parts needed for the job.

Tools used: Torx screwdriver T25.

Step 1: Turn your Automower over. Unscrew the four screws on the rear wheel.

Step 2: Remove the rear wheel from the robot.

Step 3: Remove the holders from the rear wheel by pulling them outwards. Unscrew the three screws according to the markings.

Step 4: Pull the rear wheel apart.

Step 5: Remove the axle with ball bearing and the three gaskets from the old rear wheel.

Step 6: Install the axle and the three gaskets in the new rear wheel.

Step 7: Press the rear wheel together. Then screw the three screws on again and put the ends back on the shaft.

Step 8: Press the rear wheel together. Then screw the three screws on again and put the ends back on the shaft.