JOHN DEERE 3320 ENGINE STARTS FINE BUT WONT MOVE?

[guzzman007]

Iam asking if anyone knows what problem Iam having here ,starts up fine,but will not move? forward or reverse?,error 15 came on but bypassed that with pin under seat for safety and even disconnected battery to reboot ecm,pto kills engine when engaged,checked rear dip stick oil was very low,now iam thinking there is air in the hydro system now after filling it,do I have to bleed or drain hydro oil to get air out?someone please get back to me on this asap.Thank you

 

[Coyote machine]

I'd repost this question in the Deere forum, much better chance of getting answers there. My guess is you shouldn't have to drain anything to get air out, the hydro has to be vented to function properly....

 

[dusty3030]

Welcome aboard.
Code 15 and PTO engaged killing the engine you have an electrical problem. That is operator out of seat error. You said you bypassed seat switch, but could still be a short somewhere in the wiring you need to trace out.