Craftsman Lawn Tractor Safety Switch Troubleshooting. Secondly, you will notice that the wires are plugged in underneath a connector. If the operator stands, the spring forces the gap open and interrupts the electrical ignition circuit.

Remove the plastic cover on the deck that protects the blades belt assembly. Mounted between two plates, the switch's spring compresses under the weight of the person sitting in the operator seat and completes an electrical circuit. Secondly, you will notice that the wires are plugged in underneath a connector.