Cub Cadet Excessive Cutting Noise

Robot mower is very noisy while cutting compared to normal operation

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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

Bent or damaged blades, Loose blade screws, Worn blade motor bearings, Foreign object contacting cutting disc

How to Fix / Troubleshooting

Safety first: Turn OFF power and disconnect the battery. Wear gloves when handling blades.

  • Inspect blades: Remove each blade and check for bends, chips, or cracks. Replace as a complete set if any are damaged.
  • Check blade screws: Ensure all blade screws are tight to the specified torque. Loose blades can rattle and cause noise.
  • Look for obstructions: Inspect the deck area for sticks, stones, or plastic pieces rubbing against the disc.
  • Spin disc by hand: Listen for grinding or roughness that indicates worn motor bearings. Replace the blade motor assembly if noisy.
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Repair Difficulty

Medium 3/5

Required Part

Cutting Blades
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