I have a model 50 blower with a driveshaft adapted to fit on my 420. It's a great outfit that gets lots of use in the UP Michigan snows. I'm looking for a diagram or schematic that shows the cable configuration with the pulleys and chute. Today one end of the cable broke off and I need to get it put back together - before the next big snow! Does anyone know where I can find an online manual or diagram showing how it winds around the pulleys and chute? Any help with this is greatly appreciated! Thanks much.