Uploaded April 2020 | Updated September 2026, 3 weeks ago
In this video I disassemble a Dremel tool (model 4000) in an attempt to fix it. It was running "rough" and would eventually stop turning on. The fix was to eliminate a small protrusion on one of the brush guides so the brush element could move freely. The video shows how to take it apart and put it back together. I also show it running while the case was apart and you can hear the noise it was making.
In this video I disassemble a Dremel tool (model 4000) in an attempt to fix it. It was running "rough" and would eventually stop turning on. The fix was to eliminate a small protrusion on one of the brush guides so the brush element could move freely. The video shows how to take it apart and put it back together. I also show it running while the case was apart and you can hear the noise it was making.
