Broken Front Wheel On a Robomower

A Robomower is an automatic, self-propelled lawn mower that tracks the distance to sensors placed in the yard corners to cut grass within a specified perimeter. The Robomower cuts rows in a triangular manner, often overlapping its own path until the on-board sensors detect that the entire area is cut. The front wheel is similar to a caster on an office chair, allowing the mower to turn and pivot in a new direction whenever necessary. Over time the wheel can wear out or break if the mower hits rough terrain or collides with a rock. You can install a replacement in minutes.

Adjustable wrench

Instructions

- 1
  Raise the cover on the back of the Robomower to disconnect and remove the rechargeable battery pack.
- 2
  Turn the mower upside-down to inspect the front wheel. You might need to recruit a helper to assist you in turning over the mower. The smallest Robomower models weigh 80 lbs.
- 3
  Twist the threaded nut surrounding the spindle on the wheel counterclockwise, using an adjustable wrench.
- 4
  Pull the wheel and spindle from the metal socket in the underside of the Robomower.
- 5
  Insert the spindle on the new wheel through the nut and into the metal socket. Push the wheel firmly until the spindle seats inside the socket.
- 6
  Twist the nut clockwise with the adjustable wrench until tight.
- 7
  Turn the Robomower right-side up.
- 8
  Insert the battery pack into its compartment and close the back cover.

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