problem with MFK700

rubicanto

Member
Joined
Aug 4, 2009
Messages
4
I recently was using my MFK700 while routing out a template using a small (3/16?) bit and a bushing.  I was only routing ?? deep.  The router stopped while I was using it.  I turned the switch off then when I turned it back on it started right back up.  It did this several times.  Has anyone had this happen?  Does anyone have any ideas of why.  The cord was tight and was twisted in well.
 
I have had a similar problem and I think I might know what is happening but have not been able to verify it. I was pondering this a few days ago , trying to remember all of the conditions under which I had problems and also when I did not. I am beginning to suspect that the router is shutting down when I cover the exit vents for the air that circulates through te router. I recalled that when I was having the issue I also remembered that my hand was getting warm (no smart remarks please). As I would be routing, the shut down would happen progressively quicker, which is exactly what I would expect if the internal sensors were getting progressively warmer. I have been meaning to try another session to see if I could replicate the condition. I would suggest the OP try routing under the same conditions that caused his failure but make sure his hand is not blocking the air outlets and see what happens.

I also have determined that the router prefers 2 flute bits to single flute ones.
 
Thanks guys for the post.  That sounds logical.  I didn't notice any increased heat though.  I had only routed one small area 1"x1".  I hope that the router is not that sensitive.  Do you guys think I should have it looked at by a tech.?
 
rubicanto said:
Thanks guys for the post.  That sounds logical.  I didn't notice any increased heat though.  I had only routed one small area 1"x1".  I hope that the router is not that sensitive.  Do you guys think I should have it looked at by a tech.?

It wouldn't hurt to call Festool's service to see what they have to say.
 
To clarify, the heat I felt was the normal heat generated by the router. It was because I had my hand over the outlets that I noticed it. I feel I may have blocked the normal ventilation route sufficiently that the sensors didn't like it. Shutting down would be what I would refer to as an intelligent survival tactic on the part to the router. I don't believe the router was actually overheating from the work it was doing but it was tricked into believing it was too hot due to my poor handling technique.
 
Back
Top