JD 750 won't start

[Plysage]

I've never had a problem with it before. Fired right up this morning. Now it Won't turn over. All ignition lights etc come on when I turn the key. All lights, flahers etc work fine. It will start jumping across the starter leads. Check the PTO switch, neutral switch, harness, ground, tried jumping (no luck), checked ignition switch. Everything seems to be in order. Ideas?

 

[DFB]

Starter relay?

 

[grsthegreat]

i used to have issues with my JD870's seat switch.

very touchy little things. when it gave me issues, tractor wouldnt start up.

had to keep it cleaned and lubed.

 

[DFB]

I did some site searching for you and found 2 threads dealing with similar problems. Seems there is no starter relay on that model but you can easily add one to the starting circuit. Check wire from key switch to starter.

http://www.tractorbynet.com/forums/...g/152858-jd-750-compact-tractor-starting.html

http://www.tractorbynet.com/forums/...g/232177-jd-650-utility-tractor-starting.html

 

[Plysage]

Where is the relay on this tractor? grsthegreat suggested seat switch. I don't see a seat switch on this. At least not the type I'm familiar with like the on the 455.

 

[Plysage]

Thank you for the links, good info. I've gone over the harness/connections pretty well and they seem fine and in good condition. Seems the relay idea is pretty popular. Is the relay acting as a step up transformer or capacitor? How involved is the install?

 

[Rock knocker]

Where is the relay on this tractor? grsthegreat suggested seat switch. I don't see a seat switch on this. At least not the type I'm familiar with like the on the 455.

These series tractors only have a neutral and (?)PTO safety switch.

 

[Rock knocker]

Thank you for the links, good info. I've gone over the harness/connections pretty well and they seem fine and in good condition. Seems the relay idea is pretty popular. Is the relay acting as a step up transformer or capacitor? How involved is the install?

No, a relay is a relay.

 

[DFB]

Shouldnt be difficult relays act as the contact from ignition switch to starter/solenoid

 

[Plysage]

Problem solved. Faulty/intermittent PTO switch. Thanks guys.