Dustcontrol DC 2900 a eco Traduction Des Instructions De Service D'origine page 27

Emptying
a – Container
The container underneath the cyclone should be emptied when about 2/3 full.
c – Plastic bag
You must clean the filters before replacing the plastic bag. It should be replaced when
the dust level is about 5 cm below the discharge flap.
Dust-free bag change
The machine should be switched for the duration of the bag change. Remove the bag.
The bag must be sealed as soon as it is removed from the machine. Only use
Dustcontrol's original bags.
Fit the new bag. Use the strap for dust-free work. Use the hooks for simple
suspension of the bag.
Clean the filter and use the dust extractor.
DC 2900, Art.nr. 94164-F 27