Lawn and garden tractor interlock circuit

摘要

An interlock system for a lawn and garden tractor or similar vehicle includes a PTO switch having off, on and momentary on positions and connected to a latching relay to provide PTO operation in reverse if the switch is moved to the momentary on position prior to the vehicle being shifted into reverse. Once the vehicle is operating in reverse with the PTO activated, the operator can release the switch from the momentary on position and the PTO will remain activated. However, once PTO operation has been interrupted for any reason, the PTO can be reenergized only after reverse operation has been stopped and the PTO switch has been moved to the off position.