I have a WM-EX521 with a broken speed control. Its in very good condition apart from the little turny thing inside which controls the speed. The bit that turns has come off - see pics! I thought I might be able to fix it but its way beyond my basic skills. If anyone thinks they can fix it then they are welcome to it. I would rather offer it up here to proper enthusiasts first before I give it away on ebay. Its had a new belt recently also. Will post free to UK but might ask for postage money for non UK.
Hey mate, I will take this if there are no takers so far. I have a few parts units and i have been doing a bit of soldering lately. I might be able to solder a new controller in.
Hi mate, it’s all yours! Let me know your address and I’ll pop it in the post for you. Good luck getting it working again!