I have a 35hp Vangaurd on my Turf Tiger and it recently began consistently blowing the 20a fuse. The fuse holder is good and the PTO switch tests good. When the PTO switch is engaged, the TT might run for 60 seconds or 60 minutes or 3 hours prior to blowing the fuse - no consistency. When I by pass the PTO switch and directly wire the PTO clutch to the battery with a 20a fused power cable, the PTO will run until I disconnect it from the battery. No noticeable wires being grounded. I'm out of ideas and open to suggestions.