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English
5.959-398
CARE AND MAINTENANCE
The battery plug must be disconnected before cleaning
and servicing the unit, or replacing any components.
– The unit should be tested at least once per year by
KÄRCHER or a qualified person; e.g., for damage, leaks,
and for correct functioning of the control devices.
Maintenance schedule
Daily, and after each use:
– Drain off dirty water.
– Rinse out dirty-water tank.
– Check the fluff strainer on the suction connection of the
suction turbine.
– Run finger along the squeegee blades to ascertain
condition, and replace/turn round if required.
– Check brushes for wear, and replace if required.
– Clean the exterior of the unit; do not use a high-pressure
cleaner.
Monthly:
– Check brushes for wear, and replace if required.
– Check squeegee blades; disassemble and turn round/
replace if required.
– Check battery terminals for oxidation; brush over
terminals, and smear with grease. Check that the
connecting cable is firmly attached.
– Check tank cover seals for leakage, and replace if
required.
– Overall cleaning of the inside and outside is
recommended, and prolongs the life of the appliance.
Annually:
– Arrange for the prescribed inspection to be carried out by
a service engineer.
Sub-zero temperature protection
If there is a danger of freezing temperatures, activate the
pump until no more water is discharged. The safest procedure
is to store the appliance in a room protected from freezing
temperatures.
Maintenance agreement
A maintenance agreement can be concluded with the
responsible KÄRCHER Sales Office.
Transporting the Unit
When loaded onto a transport vehicle, the unit must be
secured by straps or ropes to prevent movement during
transit.
Brush head must always be in the raised position, otherwise
the brushes could become deformed. This would result in
the brushes running out-of-true, and to subsequent
destruction of the bearings.
For transportation of the unit it is recommended that you
take the disc brushes and the brush rollers out of the
cleaning head.
Replace the squeegee blades
In the course of time the squeegee blades of the suction bar
become worn and must then be replaced:
– Undo star knobs in order that the deflector rollers and the
squeegee blades can be removed.
– Fit the new squeegee blades and tighten up the star
knobs again.
Replacing the disc brush
BD 530 BAT, BD 53/40 W
– Turn the positive drive to slow speed (–).
– Raise the disc brush slightly, turn it anti-clockwise by
approx. 45° and detach it by pulling it downwards.
– To attach the replacement brush, reverse the above
procedure.
– Turn the positive drive to the required speed (+).
Replacing the brush rollers
BR 530 BAT, BR 53/40 W
– Undo the star knob screws. Remove the side bearing
cover.
– Withdraw the brush rollers from the side.
– When inserting the new brush rollers, turn them slightly
so that it is easier for them to join with the driver.
– Finally replace the bearing covers and close them again
with the star knob screws.
Recommended cleaning agents
Cleaning agents can be obtained from your dealer, quoting
the appropriate order number.
– Use only cleaning agents that contain no solvents,
hydrochloric acid nor hydrofluoric acid.
– Do not use cleaning agents that generate large amounts of
foam, as they could cause damage to the suction turbine
or other components.
Recommended for:
Part No.
Routine cleaning
(including alkali-sensitive surfaces)
RM 746
6.291-462
Removal of greasy dirt deposits
RM 69 ASF
6.291-523
PVC surface stripping
RM 752
6.291-466
Linoleum surface stripping
RM 754
6.291-425
Sanitary cleaner
RM 25 ASF
6.291-252
Disinfectant cleaner
RM 732
6.291-382
