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View Full Version : PC Router making funny noise



twelchPTM
05-29-2014, 11:43 AM
So I turned my bot on today and the router started making this strange noise. Sounded like a piece of plastic go wrapped around the collet. But no, it was coming from inside the router! I opened up the top and looked around and it seemed like the brushes are sitting way to close so i pulled back on them and spun the router by hand and the noise was gone. I figure new brushes, no biggie. But then I thought about it, the brushes actually look okay and if the spring are pushing them to tight won't they just push the new ones to tight as well? I thinking I may have a deeper issue but I'm not sure. Think I am better off taking to the repair shop?


***Nevermind, Pulled the brushes all the way out and there worn down way to much! New question - should I replace anything else while I am at it just because I'm in there?

jerry_stanek
05-29-2014, 12:08 PM
I would check the bearings as that is a easy fix also

kartracer63
05-29-2014, 01:15 PM
Just replace the brushes. If you spun the motor with the brushes pulled back and didn't have any resistance or strange noises, brushes is all you need.

Order 2 or 3 sets of brushes so you have them on hand for next time.

curtiss
05-29-2014, 01:53 PM
***Nevermind, Pulled the brushes all the way out and there worn down way to much!


...Any photos available ? thanks

twelchPTM
05-30-2014, 01:25 PM
sorry no photos, but they where worn down to the point where I could see the other end of the lead wire on the face of the brush. I've never had to change the brushes on my router before so i didn't know what size they start at, there was only about ".25 left!. I am going to pick up spare at the repair shop next week. Lucky for me we have a PC 7539 Plunge router that is rarely ever been used and it has the same brushes, I swapped them out for a quick fix and was running again in no time. thanks for the input guys!

Brian Harnett
05-30-2014, 04:05 PM
Get yourself some spare bearings, they usually go soon after the brushes.