John Deere 430 Stalling Problem

[jdbdl]

My 1986 JD430 lawn and garden tractor starts and idles fine but stalls when I MOVE THE SPEED CONTROL ROD EITHER FORWARD OR REVERSE. Also stalls during idle when the PTO is engaged. Any help appreciated. Thank you!

 

[bohaslup123]

check your fuse box

 

[Bugsyinc]

sounds like a seat switch to me.

 

[jggoodman]

I am having the exact same problem. Any help would be much appreciated.
I have checked the fuses. I also checked the seat and brake switch, which of course have been defeated. Looking for any ideas.
I did notice, that as expected, when it stalls, it disengages the fuel solenoid.
There has to be something I am overlooking.

thanks

 

[bohaslup123]

I have owned a 430 since the late 80's and have expericenced this problem several times. Each time it was a fuse -either blown or not seated tightly. The first time I completely checked all electrical connections and spend half the day guessing what could have been wrong-it was a fuse-sometimes they dont look blown BUT the are!!!! get a few extra and keep them available---good luck.

 

[jggoodman]

This is what I found, in case anyone else ever discovers this thread and needs a little help.

Indeed there were some problems with the fuse block. When I pulled out the fuses, they appeared black, where some of the plastic had melted onto the blades of the fuse. An inspection of the fuse block itself did show some damage from heat. Not sure why it has this sort of heat damage. I installed an new, aftermarket, six fuse ganged block, and it appears to have fixed the problem.

Also, in the past, the seat and brake switch had been jumpered. The jumpers were in questionable shape. I went ahead and cut of the plugs, which I don't recommend disabling safety features, and soldered the connections. This should eliminate any more issues in this area.

All systems are now go.

Thanks for the help.

 

[430]

I have had similar problems with my 430. I will try this as well. Do you ever experience the lights on the dash flickering causing the Mower PTO to "cut-off" and back on? Great tractor, but had these electrical issues for long time. Also have issues when mowing along and wants to shut off like a "short" in electrical system, but then turns back on.