My planer is two years old. I've always had out feed snipe, but can correct it by supporting the board. I never had in feed snipe until a couple of months ago AND it is only on the right side of the planer. I've adjusted the tables, and bought a new wear plate to no avail. I want to take the planer head off, disassemble it and check everything, but I am unable to find any instructions for disassembly. Any suggestions?