C12 Clutch?

[Drewskeez]

I'm fairly new to the forum, but i've been a Festoligan for a while.  I got a c12 drill for Christmas and was wondering if it is normal that the clutch only works in high speed? 

Thanks
Drew

 

[Dan Lyke]

Nope, mine works at both low and high speeds. The speed gearing appears to happen after the clutch, however, so the amount of torque for a given clutch setting is different depending on which speed you're in.

 

[eweber]

Same here, the clutch works both in low and high speeds.

 

[mastercabman]

THE CLUTCH IS MORE SENSITIVE IN HIGHT SPEED THAN LOWER SPEED.

 

[bill-e]

THE CLUTCH IS MORE SENSITIVE IN HIGHT SPEED THAN LOWER SPEED.

Meaning that if you have it set at mid range, it will slip at a lower torque when in high range than in low range.

I don't have a C12 but that's the way the clutch on my TDK's works.

 

[James Metcalf]

Rick

Thanks again for as always for your informative posts. Hope you have had a good Christmas.  You have added to my knowledge about things Festool many times and just a note of Thanks. I always look foreward to your posts.

 

[Dave Ronyak]

Rick,

Thanks for your explanation and excellent diagram.  But I still don't fully understand how the Festool C12 clutch system works.  At page 13 of the 2007 Festool USA catalogue, near the upper right corner, it states that "Torque shut-off is activated electronically--with virtually no mechanical wear.  So is the Festool C12 torque control mechanical, electronic, or more accurately described as a combination of both? 

Dave R.

 

[Eli]

Seems like the torque control and the clutch are related but different, the torque shut-off being electronic, the clutch mechanism itself mechanical.

 

[Drewskeez]

Thanks for the valueble info guys.  I was I didn't realize the clutch worked like that, but I still can't get it to work in low speed.  I really like the drill though.

 

[Brice Burrell]

Thanks for the valueble info guys.  I was I didn't realize the clutch worked like that, but I still can't get it to work in low speed.  I really like the drill though.

Take it back and get a new one.

 

[Dave Ronyak]

Thanks, Rick, for your detailed explanation, and the very neat full color solid model.  Everything now makes sense.

Dave R.