Shut-offf seats

Sarge · Apr 10, 2006

How do the shut-offf seats that lawn mowers work???? I don't want to disconnect mine, but I do want to put one on my B1700,

Thanks

JohnF_ASI · Apr 10, 2006

I think they simply close a circuit that earths out the ignition..

Soundguy · Apr 11, 2006

But for a tractor application.. you don't want to be grounding out power to the fuel shutoff solenoid.. you'll get a smokeing wire in that situation. Rather you would want a switch to 'open' in the fuel solenoid circuit..

Soundguy

Sarge · Apr 11, 2006

Good point Soundguy, That's why I come this site before I act /forums/images/graemlins/crazy.gif

john_bud · Apr 12, 2006

The real Q is why in the world you want one????

jb

Sarge · Apr 12, 2006

I don't like them myself, but I have a young buck who is starting to learn how to work things and I was thinking of having one more safety idea installed. If nothing else just temporarily.

Soundguy · Apr 12, 2006

Then .. You will need a seat cushion with safety switch setup as NO.. and when the person is setting in it.. it is 'closed'. Make this part of the fuel cutoff solenoid circuit. If you can't find a NO cushion.. but can only find the NC cushions like the lawnmowers use, then you just have to get creative. Install a relay inline with the cutoff solenoid.. use one that has NC contacts... now for powering the relay, attach power from the switched sideof the ignition switch to one side of the coil.. for the ground of the coil, run a wire to one spade on the NC cushion, and the other spade of the NC cushion to ground. Thus, when the ignition is on, and the driver is seated, the relay is NON powered, and the contacts are closed, letting the fuel solenoid function.. if the driver gets up, the seat cushion goes returns to NC status.. completing the circuit for the relay.. its contacts open, and the fuel solenoid fall out.. tractor stops.

All that said.. I'm not a fan of booby traps like that. i can think of situations where this might harm the tractor.. like making it shut off after hi rpm and the turbo hadn't cooled yet, if the driver got up to fast..

Soundguy