Question about Craftsman 20 hp 42 in. Deck Yard Tractor
Just bought a 1993 20HP Sears Garden Tractor with a known problem. The original motor was replaced with an 18HP from another Craftsman Tractor but has never been running. Won't turn over with the key, however if I jumps across the solenoid it does crank. I do have all of the manuals for both Tractors, but schematic skills rusty. I need someone to tell me what wire should have power going to the motor for ignition and possible reasons why it won't activate the solenoid with the key.
Any help is GREATLY appreciated.
To start the tractor, current flows from the battery through the "start" contact of the ignition/start switch, then through two safety switches: one is activated by having the brake on (or by having the mower in neutral). The other is part of the PTO (engage mower blades) switch. I don't know which would come first on your mower, so get a test light or a multimeter and trace your way along this path. The current then goes to the small terminal on the solenoid.
Another possibility -- in changing the motor, did someone leave a ground lug off, or worse, maybe they just cut it off when removing the old engine? That would also prevent things from working. Good luck! If this is helpful, please rate it, thanks!
Posted on Jun 06, 2010
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Posted on Jan 02, 2017
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