Kärcher B 300 RI BP Manual page 67

9.6 Replacing brushes
There are 2 brushes built into the device; if they are worn,
they must be replaced.
One brush is replaced from the left-hand side and the

other from the right-hand side. The procedure is the
same.
9.6.1 Adjusting the sweeping level (brush contact pressure)
Clean (vacuum) the roller brush holders before fitting

the new brushes.
The brushes are inserted in the reverse sequence.

The sweeping level should be between 5-6 cm.

The adjustment of the sweeping level (brush contact pres-
sure) is set with the rotary potentiometer in the control pan-
el.
Rotate the potentiometer to the right until the lowering

brushes exhibit the correct sweeping level (brush con-
tact pressure).
Is the sweeping level too large, rotate the potentiometer

back.
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EN 67