vibration

Hi everyone. I am new to this forum. I just started trying to use a Craftsman model 315.17491 1-1/2hp router that I have had for many years but just never used until now. I bought a new Porter Cable tongue and groove bit to make some cabinet doors and mounted the router on a Craftsman router...

I recently obtained a PC 890 router that had a mild vibration - nothing serious, but not what I expected. Turns out, the early 890 routers have a recall - they say that vibration can cause insulation abrasion that leads to a electrical shock potential. Here's what I think is going on - when I...