Cedrus
Mechanical Noise from Blade Deck or Drive Train
Robot mower is excessively noisy during operation, with grinding or rattling sounds.
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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 bearings, Debris in blade motor housing, Damaged wheel gearbox, Loose screws on chassis or deck
How to Fix / Troubleshooting
Safety first: Turn OFF the mower, remove it from the lawn, and disconnect the battery or key. Wear hearing and hand protection.
- Localize the noise: Run a short test with the mower upside down on a safe support (blades disabled if possible) to determine whether the noise comes from the deck or wheels.
- Inspect blade area: Remove the blade disc (if user‑serviceable) and clean out any stones, twigs, or compacted grass from the motor housing.
- Check bearings: Rotate the blade motor shaft by hand. Roughness or play indicates worn bearings and the motor should be replaced.
- Wheel gearbox check: Turn each wheel by hand and listen for grinding. A noisy gearbox usually requires replacement of the wheel motor assembly.
- Tighten fasteners: Inspect and tighten accessible screws and bolts on the deck, chassis, and wheel mounts using the correct tools.
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Repair Difficulty
Medium
3/5
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