Bobcat 873

I have a bobcat 873 that keeps blowing the computer fuse. I was operation it and pushing brush, started backing up and it died. Tried starting and it turned over a couple times and then went completely dead. Started checking electrical and found blown fuse and also that the battery had a hole melted in the top. Replaced battery and now whenever I put a fuse in it pops it, key is off. It's obvious To me there is a dead short somewhere. Any ideas of where to start looking.

Bobcat 873