A long while ago I was given a circular saw by a workman who said that the surface plate is warped and needs replacing. I assumed then that this was all that was wrong with it, but I couldn't switch it on. I have never used one before and haven't an instruction manual for it, therefore I do not know how to get it going. Do you have a manual that I can buy and can the surface plate be straightened or replaced?
It's made in China by Challenge model MCS5025.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix circular saws.