Robomow Mechanical Noise from Blade or Drive System

Robomow is very noisy during operation, with grinding or rattling sounds from underneath.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Worn blade motor bearings, Loose blade or mounting bolt, Damaged drive gearbox, Foreign object contacting blade or deck

How to Fix / Troubleshooting

Safety first: Immediately turn the mower OFF if abnormal noise occurs. Wait for the blade to stop completely before inspection.

  • Inspect for foreign objects: Turn the mower on its side and look for stones, branches, or metal objects under the deck. Remove any debris.
  • Check blade tightness: Using the correct tool, ensure the blade bolt is tightened to the torque specified in the manual.
  • Spin blade by hand: With power OFF, rotate the blade. Listen and feel for grinding or wobble, which indicates bearing or motor issues.
  • Check drive wheels: Spin each wheel and listen for grinding from the gearbox. Replace the drive motor/gearbox if noisy.
  • Do not operate with persistent grinding: Continued use can cause further damage; have the motor or gearbox replaced.
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Repair Difficulty

Medium 3/5

Required Part

Blade Motor
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