2920 won't start

tpflyer · Feb 12, 2013

Does anyone have an electrical diagram of the starting system on a 2920? My 2920 won't start. I jumped the three interlock switches (hydrostatic pedal, pto engagement, and the one beside the pto engagement that goes int the transmission, not sure what that one is for) I also wired down the seat switch. when I engage the key switch I can hear and feel the fuel solenoid sw engage but I have no power to the starter solenoid. If I jump the starter solenoid the engine starts and stays running unless I release the seat switch then the engine shuts down. Acts like the pto is engaged but it is not and the safety switch is jumped. I put all the switches back in the system and get the same results. Jump the starter and it runs until i get off the seat. Without an electrical diagram I am stumped. Getting off the seat should not kill the engine if everything is in neutral. Any ideas? or schematics?

sandyc · Feb 12, 2013

I'm guessing that it sounds like the ignition switch.

Burtonbr · Feb 12, 2013

Maybe this will help.

tpflyer · Feb 12, 2013

Thanks for the schematic. It looks like I overlooked the seat tilt switch in my switch testing. I will check it when I get home. If it is ok then it will most likely be the operator presence controller. This is a huge help. Thank You. I did find a website where I can download the service manual for $18.99 in pdf format. Seems like a good investment now. tradebit.com if any one is interested. here is the link http://aceofpartsllc.tradebit.com/?s=b2920

tpflyer · Feb 13, 2013

tpflyer said:
Thanks for the schematic. It looks like I overlooked the seat tilt switch in my switch testing. I will check it when I get home. If it is ok then it will most likely be the operator presence controller. This is a huge help. Thank You. I did find a website where I can download the service manual for $18.99 in pdf format. Seems like a good investment now. tradebit.com if any one is interested. here is the link http://aceofpartsllc.tradebit.com/?s=b2920

Update.... My 2920 does not have a seat tilt switch. Found the occupant presence controller and disconnected the plug. checked the wiring back to each switch and all was ok. Reconnected everything and now the tractor starts. I don't like it when things just start working without really ever fixing something. So I am not super confident that it is repaired. I think there may be something intermittent within the occupant presence controller. If it happens again I am changing the controller.

Burtonbr · Feb 13, 2013

you might be right, but I sure do read many posts about tractors won't start and it turns out the HST drive pedal is not in the neutral position. Glad your got your issue sorted out..