I burn my boss fuse once in awhile with 763HC. Looked all over for a reason why, taped every suspect rub, etc. I am really rough on the machine, it has foam filled, and once in awhile the electro magentic brake engages, and stops me instantly. But the Boss doesn't seem to jibe with that problem. Recently, while using the backhoe, suddenly the rear stabs would not respond. Only if the seatbar was down. Could not cancel it out, with the buttons and operate from the backhoe seat. The backhoe would work, but not the rear stabs. If anybody has any ideas, I would apprecieate it. Thanks, A.G.