Kress Mechanical Noise / Worn Bearings

Robot mower is very noisy during operation; 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 disc, Damaged drive motor gearbox, Foreign object under deck

How to Fix / Troubleshooting

Safety first: Turn OFF main power and wear gloves before turning the mower over.

  • Inspect cutting disc: Check that the blade disc is firmly attached to the motor shaft. Tighten the central fixing bolt to the specified torque if loose.
  • Check for debris: Remove stones, branches, or hard objects lodged under the deck or around the blade disc.
  • Spin components by hand: Rotate the blade disc and each drive wheel. Listen for grinding or roughness, which indicates worn bearings or gearbox damage.
  • Replace worn parts: If noise clearly comes from the blade area, replace the Blade Motor Assembly. If from a wheel, replace the corresponding Drive Motor Assembly.
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Repair Difficulty

Hard 4/5

Required Part

Blade Motor Assembly
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