I have a 2004 750k case dozer it will not move forward or back any ideas what it might be
we really need a little more info to help you. Does everything else work? What code is it showing? It could be a switch in either one of the safety levers - it could be a blown fuse - etc....
Yes everything works no codes the only is I to jump every time I go to work on it do you think the alternator has something to do with it
would check battery and alternator for sure as it is all controlled electrically. Not at shop so can't tell you what the circuits should read as you check them when after you make sure battery/alt are good