Daughter was loaned a little Performance Power Tools angle grinder and she has been using it for finishing some of her chainsaw carvings up in Scotland.
They have come down to go to an Arb show and she handed it to me with the std "it stopped working .. can you fix it for me please Dadda?"
I went through the faultfinding steps with her b/f and we came to the conclusion it was the switch and I'd look to see if spares were available?
I leant her my spare (like you do) and once they were gone I looked closer at the switch.
Luckily it seems like it was designed to be taken to bits and as I did so a fair bit of sawdust fell out (even though it looked sealed). I removed the actual contact rocker, de-dusted everything, gave the contacts a light clean and reassembled. It looked ok on the DMM and seems to work ok again in the grinder (for now anyway?). ;-)
Anyway, I know it's only a cheap grinder and we could buy the same (or better) model as a replacement but it's much better to be able to fix the one you have, especially for nothing (apart from a bit of my time of course but I enjoy doing so, especially when it's successful). ;-)
If she starts doing more of this sort of thing I think she will look to getting something 'better', assuming there is such a things these days and if so what please?
I still have one of the Black and Decker 'Pro' (in black?) series and I think it's probably better balanced than the Bosch I have that I think is supposed to be pretty good.
Cheers, T i m