English Operating Instructions BR/BD 530/530 XL/F BAT/Package29Care and maintenanceRisk of injury!Before working on the unit, alwaysswitch off the brush mode switch andsuction motor and pull out the batterycharger mains plug.! Drain off and dispose of dirty water andany residual cleaning liquid.Maintenance scheduleAfter workCaution!Do not spray the unit with water oruse any aggressive detergents.! Drain off the dirty water.! Rinse out the dirty-water tank with freshwater.! Clean the outside of the unit.! Check the fluff strainer and, if required,clean.! Remove the squeegee blades, check forwear and, if required, replace.! Check the brushes for wear and,if required, replace.Monthly! Check the battery terminals for oxidationand, if required, lubricate with terminalgrease. Ensure that the connectioncables are secure.! Check the condition of the containercover seals and, if required, replace.! If non-maintenance-free batteries areused, check the acid concentration ofthe cells.Annually! Have customer service conduct thestipulated inspection.Maintenance proceduresReplacing the squeegee blades! Unscrew the star knobs.! Pull off the plastic parts.! Remove the squeegee blades.! Insert new rubber strips.! Push on the plastic parts.! Screw in and tighten star knobs.Replacing the roller brushes! Loosen the wing nuts.! Remove the bearing cover.! Remove both roller brushes, insert newones (note hexagon fixtures for the rollerbrushes).!