Dewalt 18 volt drill problems
I have two NiCad 18 volt 1/2" drills, one with hammer feature, and both are around 8 or so years old with very light use. By light use I mean general household usage, not any sort of general contractor use.
They both have an issue in which they bog down, either under load or free spinning. It appears to be an issue back at the brushes, as wisps of white smoke come from the vents. I can usually "clear" it by simply going from FWD-RVS several times free spinning. I've tried a couple things to clear it for good short of taking the things apart and replacing stuff - blowing really hard on the brushes, using a shop vac there, even sprayed contact cleaner....none have worked any better than the back and forth technique.
Any idea/s on what the cause may be along with a permanent fix? It doesn't happen all the time, but often enough to cause me aggravation.