Abstract: The mechanical interlock prevents inadvertent engagement of a control member. Rotation of the mechanical interlock about an interlock axis from a locked position to an engagement position allows the control member to rotate about a control axis. The mechanical interlock includes an interlock bracket that defines a guide path having locking and actuating segments that intersect at an acute angle, and a guide member that engages the guide path. One of the interlock bracket or the guide member is pivotally coupled to the control member about the interlock axis and the other is coupled to a handle. The guide path and the guide member are selectively positionable between a locked position where the guide member is proximate the locking segment, an engaged position where the guide member is proximate the intersection, and an actuated position where the guide member is proximate the actuating segment.

Abstract: An implement includes an electric starter operatively connected to an internal combustion engine to start the internal combustion engine. An ignition circuit actuates the electric starter. A first normally open switch forming part of the ignition circuit is mounted on the implement at a first position and must be held closed by an operator for the ignition circuit to actuate the electric starter. A second normally open switch forming part of the ignition circuit is mounted on the implement at a second position and must be held closed by an operator for the ignition circuit to actuate the electric starter. The first position is spaced from the second position a sufficient distance to prevent an operator from closing both the first normally open switch and the second normally open switch with a single hand.