on a chainsaw with an inboard sprocket?
AUse the supplied short mounting-bar and bolt it to the yoke on the Lewis Winch with the supplied bolts. Attach this mounting-bar to your chainsaw like you would your cutter-bar. Slide the supplied rim-sprocket on the spline of the Lewis Winchs input shaft. Wrap the cutter-less chain around the two sprockets and connect it with the master link. Set the tension of the chain as you do with the cutter bar.