I have a milwaukee d handle hammerdrill model 5398 that just quit running while i was using it. Its about 25 years old, but hasnt been worked hard. The brushes look almost like new. I am trying to figure out if its the trigger but it has a lot of wires coming out of it. There is a black and white in to the trigger (right side on picture). Coming out are a red and two thin blacks (left side of picture). when i push the trigger i get continuity between the black in and the heavy red. Does anyone know how to test to make sure trigger is good or if there is anything else I can check before hauling it into someone?
thanks,
Stevo