Riding Lawn Mowers

I Have the Husqvarna YTH22V42. I am trying to remove the deck so that I can add Husqvarna two stage snow blower attachment. I have the deck all but removed. What I am confused about: How to I remove the cable that is spring loaded and engages the belt to run the mower? If there is a video that explains this then by all means post the link.

Thanks