Have an 8 yr. old troy bilt pony riding mower (13AY609H063). Heard loud snap while mowing and deck belt pulley with spring still attached became unhooked. From reading on this site, I suspect it's the electric pto cable, but need diagram on where to find and how to fix. This is the first problem I've had, and cut approx. 1 acre every week.

Hi,
I would think the bolt #24 in picture either came loose and fell out or broke. It is #738-3056 shoulder bolt 1/2" x 2.5" Check that and get back.