The K80 Cam Switch should be mounted to the driving shaft of the machine in such a manner that the keyway of the K80 is straight up (at the 0 degree point) and that the machine is at it’s start (home) point. All cam settings should be made with the shaft uppermost (looking at the unit from behind the snap switches). The shaft rotation is always established off of the right end of the unit, even if the left hand shaft is to be coupled to the machine’s driven shaft.