Ambrogio Front Caster / Pivot Wheel Seized

Robot lawnmower front wheel does not swivel freely, causing poor turning and track marks

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Possible Causes

Grass and dirt packed in pivot, Rusted pivot pin, Damaged front wheel bearing, Bent pivot fork

How to Fix / Troubleshooting

Safety first: Turn OFF the robot and tip it on its rear or side.

  • Clean pivot area: Remove the front wheel and clean all grass and dirt from the pivot and fork.
  • Lubricate pivot: Apply a light, outdoor-safe lubricant to the pivot pin and bearing surfaces.
  • Check for damage: Inspect the wheel and fork for bending or cracks. Replace if worn or damaged.
  • Reassemble and test: Ensure the wheel swivels freely through 360° before returning the robot to service.
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Repair Difficulty

Easy 2/5

Required Part

Front Pivot Wheel Assembly
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