Mammotion Uneven Cutting Height / Deck Leveling Issue

Robot mower runs but cuts grass unevenly, leaving scalped patches and tall tufts

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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

Incorrect cutting height setting, Worn or mismatched blades, Bent blade disc, Worn wheel bearings causing chassis tilt

How to Fix / Troubleshooting

Safety: Turn OFF power, disconnect the battery, and wear gloves before touching blades.

  • Adjust height: Set the cutting height in the Mammotion app or on the mower to a higher level, then gradually lower over several days.
  • Inspect blades: Remove and inspect all blades. Replace any that are bent, chipped, or of different types/lengths. Always use a full matching set of Mammotion blades.
  • Check blade disc: Spin the blade disc and observe from the side. If it wobbles, the disc may be bent and should be replaced.
  • Wheel play: Wiggle the wheels side-to-side. Excessive play may indicate worn bearings or axles, which can tilt the mower and cause uneven cutting.
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Repair Difficulty

Medium 3/5

Required Part

Blade Set
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