Semi-automatic filter cleaning

The filter cleaning function should be activated at the very latest when the suction power is no longer sufficient.

How often filter cleaning needs to be carried out will depend on the type and quantity of dust that has been extracted. With regular use, the maximum conveying capacity will be maintained for longer.

• Switch the dust extractor off for 6–10 seconds and then on again. Repeat this several times in succession.
  The pre-filter (22) is cleaned using blasts of air when it is switched off.
• To work after cleaning the filter, switch the dust extractor back on.