Have checked the brushes and they look good, plenty of carbon left, I have also checked and it looks cleen inside the variable speed control box. Are there any further things I can try?
I am new to UK WORKSHOP so hello from me. I have a diamond scrollsaw which I bought new, probably 20 or so years ago. It has been an excellent and reliable tool for me, but recently I have noticed the variable speed is not consistent. It will speed up and/or slow down as I am cutting, has anyone...