V.Brøndum RONDA 2800H User Manual page 22

User Manual - English
 Pull the flap of the shock valve (a regular pull, not a tug)
The equalization air will now go through the multi-tube filter in
the opposite direction in order to equalize the pressure in the
collection container and in the hose.
In this way the multi-tube filter is cleaned in an effective way.
You can see the effect of the cleaning when you read the
vacuum indicator.
Repeat the process a few times, if necessary, and read the effect on the vacuum indicator.
It is recommended to leave the machine for a few minutes before emptying it. The dust will fall to the bottom of
the container, and the risk of swirling dust into the surroundings during the emptying is reduced.
V. Brøndum A/S RONDA 2800H Page 22
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