I have a 2006 huske supremme 46 inch cut 19 hp model 13ax605h730..
Problem is when you start the mower the deck pulleys start to turn and the blades turn alslo.. blades are in the off position very strange issue here has me stumped any ideas thanks

The Belt tensioner is not releasing the belt all the way-If tis a new belt check length - if old belt its proable in the on/off handle or the tensioner

[B]I agree with the first reply but I had this happen earlier this year and I've never seen it before. A friend gave me a nice Craftsman rider that belonged to his parents who had taken it to Sears :eek: because the blades wouldn't disengage. Sears told them besides the blade issue it needed a motor and was too expensive to fix. Uhuh.
So I got it and sure 'nuff the blades started as soon as the motor even with the handle in the disengage position. Took me some time but I finally discovered that apparently someone had "jumped" the mower up on something (right on the pulley w/motor running) and that evenly flattened out the very bottom half of the lower pulley section. This closed up the V in the pulley which took up any slack in the belt hence the blades running as soon as it started. I took the pulley off and with a hammer straightened it to like new and problem solved!!
And by the way, there was nothing wrong with it's twin Briggs and it runs GREAT! :D

Huskee issues I agree with the idea that the pully could be bent and causing the belt to catch and turn the blades I assume this is a manual shift to engange the blades if this is I would also check the deck some times the pully assy are spring loaded and if they get rusty or dirty they can hang up with the blades in gear.