help with AEG dust extractor

[trojan62]

hi folks....
ive been given an aeg dust extractor by someone who didnt really know much about it and the same applies to me too.
ive never had or used a dust extractor before and was wondering if anyone else has this model or if anyone has a manual for it.
maybe someone could tell me what i need to get for it, as it has no hose, and also how to connect it up for best use.
the large hole in the side i know is for the main hose for the extracting, but as you can see in the pics, there are two sort of mesh holes on top that i dont exactly know what they are for. its a twin motor unit by the way.
also as you can see in the pics there are 2 switches, is this for either of the motors to run together or individualy.

anyway, hopefully someone can help me out.

thanks in advance.......

 

[trojan62]

Surely someone on here has the unit.......

 

[slemishwoodcrafts]

Looks very similar to the camvac and record power units.
The mesh holes on top should be the exhausts for the motors and the two switches allow either one or both motors to be running.