Kärcher KM 120/150 R Bp Pack User Manual page 31

Note
Once the new roller brush has been in-
stalled, the sweeping track must be read-
justed.
Check and adjust roller brush sweeping
track
Note
To do this, the machine must be in basic-
operating mode. The power button indica-
tor lamp should not light up.
Set programme switch to step 1 (driv-
ing). The side brush and roller brush are
raised.
Drive sweeper on to a smooth, even
surface covered with a visible layer of
dust or chalk.
Lower roller brush and allow it to briefly
rotate.
Raise roller brush.
Press pedal which raises bulk waste
flap and keep pressed.
Drive machine backwards.
Figure 20
The sweeping track should have an even
rectangular shape which is between 20 and
30 mm wide.
Note
The shape of the sweeping track must not
be trapezoidal. If so, consult Customer
Service.
Note
The sweeping track can be adjusted using
a handwheel in basic-operating mode.
Open cover and secure it (Diag. 3).
Figure 21
Enlarging sweeping track:
Turn the adjustment screw in an anti-
clockwise direction (+).
Reducing sweeping track:
Turn the adjustment screw in a clock-
wise direction (-).
Note
In power-operating mode, the sweeping
track is automatically adjusted due to the
floating mounting for the side brush as the
bristles wear down. The roller brush must
be replaced if it becomes too worn.
Adjusting and replacing sealing strips
Park the sweeper on an even surface.
Set programme switch to step 1 (driv-
ing). Roller brush is raised.
Turn main key to "0" and remove it.
Secure the machine with wheel
chock(s) to prevent it from rolling away.
Open the side panel quick-release
locks on both sides.
Remove side panels.
Front sealing strip
Loosen retaining nuts for the front seal-
ing strip (1) slightly (to replace, un-
screw).
Screw on new sealing strip without fully
tightening the nuts.
Figure 22
Adjust sealing strip.
Set the distance of the sealing strip to
the floor so that the bottom edge trails
behind at a distance of between 35 and
40 mm.
Tighten nuts.
Rear sealing strip
Set the distance between the sealing
strip and the floor so that the bottom
edge trails behind at a distance of be-
tween 5 and 10 mm.
If worn, replace.
Remove roller brush.
Unscrew retaining nuts for rear sealing
strip (2).
Screw on new sealing strip.
Side sealing strips
Slightly loosen retaining nuts for the
side sealing strip (to replace, unscrew).
Screw on new sealing strip without fully
tightening the nuts.
To set the floor clearance, insert a
sheet with a thickness of between 1 and
2 mm under the sealing strip.
Adjust sealing strip.
Tighten nuts.
Screw on side panels.
Replacing dust filter
Danger
Empty waste container before replacing
dust filter. Wear a dust mask when working
around the dust filter. Observe safety regu-
lations on the handling of fine particulate
material.
Slightly raise the waste container and
tipp it a little.
12
-
EN
Figure 23
Disconnect filter motor from power sup-
ply (1).
Disconnect the plug connection of the
limit switch.
Loosen the screw joint of the filter agita-
tor motor.
Open catches (2).
Slightly tip the filter box backwards and
take it out (3).
Figure 24
Loosen filter mount (1), turn (2) and pull
out.
Remove louver filter (3).
Insert new filter.
Make sure driver engages with grooves
on drive side.
Snap filter mount back on and tighten
screws.
Note
Make sure when installing the new filter
that the fins are not damaged and the filter
case seal does not get jammed.
Replacing filter case seal
Lift filter case seal out of groove in the
cover.
Insert new seal.
Checking drive belt
Danger
The engine requires approx. 3-4 seconds
to come to a standstill once it has been
switched off. During this time, stay well
clear of the working area.
Turn main key to "0" and remove it.
Open cover and secure it (Diag. 3).
Figure 25
31