Bosch Cover Safety Switch Misalignment

Robot mower top cover feels loose and safety interlock sometimes prevents starting

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Possible Causes

Broken cover latch, Deformed cover hinges, Worn safety switch actuator, Loose mounting screws

How to Fix / Troubleshooting

Safety: Turn OFF the mower before adjustment.

  • Inspect latches and hinges: Ensure the top cover closes firmly and evenly.
  • Tighten screws: Secure any loose screws around the cover and safety switch bracket.
  • Check actuator tab: Verify that the plastic tab on the cover correctly presses the safety switch when closed; replace the cover or switch if worn.
  • Test operation: Close the cover and start the mower to confirm reliable operation.
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Repair Difficulty

Easy 2/5

Required Part

Cover Safety Switch
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