Kärcher B 90 R Series, Operating Instructions Manual

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20
English
Faults without display on the console
Fault Remedy
Appliance cannot be started Insert battery plug.
Set main switch to “1”
Safety switch not activated, sit down on the seat.
The machine operates only if the operator is seated on the seat.
Release emergency-stop button.
Set the key switch to "0". Wait approx. 10 minutes before turning the key switch to "1" again. If possible,
use the unit only on level surfaces. Check immobilizing brake and foot brake if required.
Take your foot off the accelerator before switching on the main switch. If the fault recurs, call customer
service.
Check battery; charge it, if needed
Insufficient water quantity Check fresh water level, refill tank if necessary.
Check hoses for blockages; clean if required.
R cleaning head: Remove the water distributor strip and clean it.
Clean the fresh water filter.
Insufficient vacuum perform-
ance Clean the seals between dirt water reservoir and cover and check for tightness, replace if required.
Clean the flat fold filter in the waste water tank
Clean the vacuum lips on the vacuum bar, turn or replace if required
Check suction hose for blockages; clean if required.
Check the suction hose for tightness; replace if required.
Check if the cover on the dirt water discharge hose is closed
Check the setting of the vacuum bar.
Attach additional weight (accessory) to the vacuum bar.
Insufficient cleaning result Adjust the contact pressure (not with Eco model)
Adjust the wiper flaps (not with Eco model)
Check the brushes for wear, replace if required.
Brushes do not turn Reduce the contact pressure (not with Eco model)
Check if foreign matters block the brushes; remove foreign matter if required.
Motor overload, allow to cool down. Set the key switch to "0". Wait approx. 10 minutes before turning
the key switch to "1" again.
Drain hose for dirty water is
blocked Open dosing equipment at the drain hose. Pull out the suction hose from suction beam and close it by
hand. Set the program selection switch to suction or vacuuming. The blockage will be sucked out from
the drain hose into the dirt water tank.
Detergent metering Dose (on-
ly Dose) does not function
properly Inform Customer Service.