Router brush

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dvaskie127
Posts: 36
Joined: Sat Dec 24, 2016 4:12 am
Model of CNC Machine: Shark HD4
Location: Taylor, PA

Router brush

Post by dvaskie127 »

My router stopped working today and was wondering if a broken brush would be the culprit. If not should I be looking for a replacement.
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kp91
Vectric Apprentice
Posts: 77
Joined: Thu Jun 09, 2016 3:33 pm
Model of CNC Machine: Digital Wood Carver
Location: Fredericksburg, Virginia

Re: Router brush

Post by kp91 »

A broken brush is definitely the first place to start troubleshooting.

Replace both brushes and see how it runs afterwards
Doug
1 John 1:9
Fredericksburg, VA

CT63
Posts: 1
Joined: Sun Oct 29, 2017 9:17 pm
Model of CNC Machine: Home built

Re: Router brush

Post by CT63 »

Take a flashlight and look in the brush holder opening. Slowly rotate the motor rotor and make sure none of the insulators (between each commutator bars) are sticking up. The rotor commutator should be smooth. Carbon brushes normally don't break like yours unless being struck by a bad rotor bar or insulator. The commutator should be a light to medium brown color. Any blackened or burned bars are from "pin arcing" that usually indicates a shorted rotor winding.

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