DeWalt DW616/618 question
I recently acquired a very cheap dw618 that needs some help. I've rebuild a lot of larger power tools but as of yet, not a router, so I'm looking for a little guidance before I crack this one open.
I know it needs bearings & have done them on other tools, so my only question here is: is there anything out of the ordinary or unique to routers that I should know in changing them out? (no need to to say, "don't use cheap bearings"...I know better on that issue)
Next, and maybe this needs to be addressed first before I spend time on bearings, when it runs, I'm hearing a significant internal noise that sounds like electrical sparking/arcing.
I looked at the brushes & they appear good. Haven't pulled out the armature & cleaned anything yet.
Any thoughts on this?