Dry vacuuming

Vacuuming up dust deposits

Adjust the volume flow controller (6) to suit the hose diameter used.

To switch on the dust extractor, set the mode selector switch (7) to the "extraction" symbol.
To switch off the dust extractor, set the mode selector switch (7) to the "switch off" symbol.

The dust extractor is fitted with airflow monitoring. In the "extraction" operating mode, the volume flow monitoring is fixed to a value of 20 m/s, irrespective of the setting of the volume flow controller (6).
If the value falls below this, e.g. due to accumulated dirt in the vacuum hose, a full safety filter bag or a clogged flat-pleated filter, an audible alarm signal will sound. In this case, switch off the dust extractor and check it as described in the "Rectifying faults" section.

Extracting dust that accumulates from working power tools (see figure G)

There must be a sufficient air exchange rate in the room when the exhaust air comes back into the room. Be aware of the corresponding national regulations.

The dust extractor has a plug socket with a protective earth contact (5) that can be used to connect an external power tool. Observe the maximum permitted connected load of the connected power tool.

In order for sufficient dust transport to be ensured at the extraction point, the volume flow must not fall below the minimum specified for the connected power tool.

Hose diameter	Volume flow setting
35 mm	57.9 m³/h
22 mm	41.2 m³/h
15 mm	12.7 m³/h

Adjust the volume flow controller (6) to suit the hose diameter used.

Fit the dust extraction adapter (23).
Insert the dust extraction adapter (23) into the extraction outlet of the power tool.

Note: When working with power tools that have a low air feed into the vacuum hose (e.g. jigsaws, sanders, etc.), the false air intake (36) of the dust extraction adapter (23) must be opened. This will ensure that the automatic filter cleaning function works correctly.
To do this, turn the ring above the false air intake (36) until the opening is at its maximum size.

To activate the automatic start/stop function of the dust extractor, set the mode selector switch (7) to the "automatic start/stop" symbol. In this operating mode, the volume flow is electronically monitored according to the setting of the volume flow controller (6). Having the correct setting selected ensures sufficient dust transport.
To start the dust extractor, switch on the power tool connected to the plug socket (5). The dust extractor will start automatically.
To stop dust extraction, switch the power tool off. The automatic start/stop run-on function will run for up to 15 seconds longer in order to extract the remaining dust from the vacuum hose.
To switch off the dust extractor, set the mode selector switch (7) to the "switch off" symbol.

If the acoustic warning signal sounds, the dust extractor must be checked as described in the "Rectifying faults" section.