No, i dont know. Searched for manuals, but links seem to be dead. I had my L/F wheel off shortly before this happened, but cant see what the problem might be. That side wheel is sitting slightly higher then the rest of them (a 1/4 inch), doubt that make a difference though. I cant make any adjustments at all now though, back or front, cause as soon as I turn it on it gives the error and beeps, and all the lights flash red.