ENGLISH USER MANUAL22 9097293000(3)2010-03 A BA 651 - BA 751 - BA 851 - BA 751CMACHINE LONG INACTIVITYIf the machine is not going to be used for more than 30 days, proceed as follows:Perform the procedures shown in After using the machine paragraph.1.Disconnect the battery connector (12).2.FIRST PERIOD OF USEAfter the first 8 hours, check the machine fastening and connecting parts for proper tightening and check the visible parts forintegrity and leakage.MAINTENANCEThe lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.The following table provides the scheduled maintenance. The intervals shown may vary according to particular working conditions,which are to be defined by the person in charge of the maintenance.WARNING!The procedures must be performed with the machine off and the battery disconnected.Moreover, read carefully the instructions in the Safety chapter before performing any maintenance procedure.All scheduled or extraordinary maintenance procedures must be performed by qualified personnel, or by an authorised ServiceCenter.This Manual describes only the easiest and most common maintenance procedures.For other maintenance procedures shown in the Scheduled Maintenance Table, refer to the Service Manual that can be consultedat any Service Center.SCHEDULED MAINTENANCE TABLEProcedure Daily, after usingthe machine Weekly Every sixmonths YearlyBattery chargingSqueegee cleaningBrush/pad cleaningRecovery tank and debris tray cleaning, and cover gasket checkEcoFlex™ system cleaning and draining (optional)Squeegee blade check and replacementSolution filter cleaningVacuum system motor filter cleaningBattery (WET) fluid level checkScrew and nut tightening check (1)Check and adjustment of driving belts between motors andcylindrical brushes (only for BA 751C) (2)Brush/pad-holder motor carbon brush check or replacement (2)Vacuum system motor carbon brush check or replacement (2)Drive system motor carbon brush check or replacement (2)And after the first 8 working hours.(1)This maintenance procedure must be performed by an authorised Nilfisk Service Center.(2)MACHINE WORKING HOUR CHECK(Only if the machine is equipped with hour counter)Turn the ignition key (80) to “I”.1.Press the switch (73) and read on the hour counter (79) the total number of working hours (scrubbing/drying) performed by the2.machine.Press the switch (73) again.3.Turn the ignition key (80) to “0”.4.