CT 36 AC filter clogging up when using Planex to remove stucco

[Fresh Interiors]

Hi All,
I'm a newbie with Festool. Just purchased the Planex with the CT 36 AC and was hoping to get some feedback on on an issue I am having. I'm sanding unpainted stucco ceilings and having an issue with the filter clogging up quickly. Maybe after 15 min of use. I have the auto clean function on high, and the suction set to max. When I bang out the filter I get very little dust from the Planex. But shortly thereafter, I notice the dust starting to come from the head and can tell that it is not being sucked to the unit. I'm not sure whether or not this a result of the fact that I'm sanding a fair amount of material in the stucco, or if I just don't have a setting or technique right. I feel like I'm having to bang the filter out a little too frequently??  I am using a disposable bag with the Brilliant 80 sanding disk.
Any help or suggestions would be greatly appreciated!

 

[tjbnwi]

Fleece bag or plastic liner?

If it is the fleece bag swap that out for the plastic liner. The fleece is getting plugged.

I read that with the fleece bag in the AC the auto clean does not work properly.

You should also get the blast gate, it helps deep clean the filter. For now instead of banging off the filer block the hose port and let the AC mode deep clean the filter.

Tom

 

[Saskataper]

I'm guessing by stucco you actually mean ceiling texture. The filter can start to get clogged with the fibers from the texture, if you don't have the blast gate just unhook the hose and cover the inlet while doing a manual autoclean, it will clean the filter a lot more aggressively.

 

[Saskataper]

Check out this video I made of the Autoclean in action. You can see how it works, sanding texture generates a ridiculous amount of dust and once the vac starts to get full the autoclean won't work as well.