cruisnblue48 783 #1 Posted August 18, 2018 A few years ago, I bought a 1990 520H Wheel Horse with no attachments and just used it for riding around. Now I want to put this big boy to work, so I bought a mower deck attachment for it. I mounted the mower deck, no problem, quick and easy. Can someone show me a photo of the seat switch and its location? I think my tractor does not have a seat switch or it was bypassed somehow. I can start the tractor without sitting on the seat. But when I am sitting on the seat and engage the PTO lever, the engine will shut off when the PTO lever is fully engaged and the seat switch warning light comes on. What am I missing here? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,488 #2 Posted August 18, 2018 Here is a picture of the switch. Click on the photo to see more views This is the switch item # 14 in the illustrated parts list. It is just right of the tail lights. https://www.partstree.com/parts/toro/mowers-lawn-garden-tractor/41-20oe01-520-h-toro-520-h-garden-tractor-1990/electrical-system_2/ Good wiring diagrams. Each major circuit has it's own diagram. Click on the picture. Garry 1 Share this post Link to post Share on other sites
