Karcher KM 150-500 D 4-r�drig - Manual (Page 28)

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Troubleshooting
Fault Remedy
Appliance cannot be started Sit on the driver seat, the seat contact switch gets activated.
Charging or replacing battery
Fill in fuel, deaerate the fuel system
Change fuel filter
Check fuel pipes, connections and joints and maintain them if required
Inform Kärcher Customer Service.
Engine is running erratically Clean air filter or change filter cartridge.
Check fuel pipes, connections and joints and maintain them if required
Inform Kärcher Customer Service.
Engine is overheated Refill coolant
Rinse cooler
Tighten V-Belt
Inform Kärcher Customer Service.
Engine is running but machine is
only moving slowly or is not mov-
ing at all Release parking brake
Check for trapped ribbons and strings.
Inform Kärcher Customer Service.
Whistling sound in the hydraulic
system Refill hydraulic fluid
Inform Kärcher Customer Service.
Brushes are rotating slowly or not
at all Move the gas lever all the way to the front (high speed).
Check for trapped ribbons and strings.
Inform Kärcher Customer Service.
Too little or no suction power in
the brush area Clean filter
Inform Kärcher Customer Service.
Dust gathers in the machine Adjust the side seals
Switch on blower
Clean dust filter
Replace filter washers
Inform Kärcher Customer Service.
Sweeping unit does not pick up
waste Empty waste container
Clean dust filter
Replacing roller brush
Adjust sweeping track
Replace sealing strips of the waste container
Remove the blocking of the brush roller
Inform Kärcher Customer Service.
Waste container does not raise or
lower Set programme selection switch to "Transport drive". .
Inform Kärcher Customer Service.
Waste container is rotating slowly
or not at all Inform Kärcher Customer Service.
Operation problems with hydrau-
lic movement parts Inform Kärcher Customer Service.
28 EN