Karcher KM 150-500 LPG - Manual (Page 27)

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Note: Tighten the oil drain screw using a
torque wrench to 25 Nm.

Fill in motor oil.
For oil type and filling quantity refer to
Chapter "Technical specifications".
 Close oil filler opening.
 Let the motor run for approx. 10 sec-
onds.
 Check engine oil level.
Note
The waste container must not be raised.

Open engine cover.
1 Looking glass
2 Manometer
3 Screw cap, oil fill opening
 Check hydraulic oil level in the looking
glass.
– The oil level must lie between “MIN“
and “MAX“ marking.
– Add hydraulic oil if the oil level is below
the "MIN" marking.
 Loosen the closing cap of the oil filling
opening.
 Clean the filling area.
 Refill hydraulic oil.
For oil type refer to Chapter "Technical
specifications".
 Replace and tighten the closing cap of
the oil filling opening.
Note
If the pressure gauge shows an increased hy-
draulic oil pressure, the hydraulic oil filter must
be replaced by Kärcher customer service.
 Lock parking brake.
 Start the motor.
Only Kärcher Customer Service is author-
ised to carry out maintenance tasks on the
hydraulic unit.

Check all hydraulic hoses and connec-
tions and ensure that they are leak-
proof.
ƽ
Danger
Danger of scalding by boiling water! Let the
cooler cool down for at least 20 minutes.

Check the cooling water level on the
balance reservoir (water level between
MIN and MAX).
 Clean cooler lamella.
 Check cooler hoses and connections
and ensure that they are leak-proof.
 Clean the fan.
 Start the motor.
 Raise the waste container up to the
end-position.
 Switch off engine.
 Lock parking brake.
 Use the safety bar for emptying from a
height.
 Remove belts or cords from roller
brush.
 Remove the safety bar.
 Start the motor.
 Lower the waste container up to the
end-position.
 Switch off engine.
1 Fastening screws of the roller brush in-
take
2 Roller brush
3 Roller brush intake
4 Holding plate for side seal
5 Side seal
 Open the side covers using a key.
 Unscrew the wingnuts from the holding
plate side seals and remove the holding
plate.
 Flip the side seal out.
 Uncscrew the retaining screw of the
roller brush intake, and swing the intake
to the outside.
 Pull out roller brush.
Installation position of roller brush in direc-
tion of travel (top view)
Note: When installing the new roller brush,
ensure correct positioning of the bristle as-
sembly.

Install new roller brush. The nuts of the
roller brush must be inserted on the
notches of the opposite crank.
Note: Once the new roller brush has been
installed, the sweeping track must readjust-
ed.
Note: The sweeping track is factory-set to
80 mm; it is steplessly adjustable if the
brush roller wears down.

Check tyre pressure.
 Switch off suction blower.
 Drive sweeper on to a smooth, even
surface covered with a visible layer of
dust or chalk.
 Set the programme switch to sweep
with roller brush.
 Set programme selection switch to
"Transport drive".
 Drive machine backwards.
 Check sweeping mirror.
The sweeping track should have an even
rectangular shape which is 80-85 mm wide.
Adjusting the sweeping track:
1 Adjusting screw

Adjust the sweeping track position by
adjusting the adjustment screw.
 Check sweeping mirror.
Check hydraulic oil level and refill hy-
draulic oil
Check hydraulic unit
Check water cooler and maintain it
Checking roller brush
Replacing roller brush
Check and adjust roller brush sweeping
track
27 EN