-22-5.1 MachineThe machine must be cleaned of dust deposits atregular intervals. When doing so, clean all joins andguides as well as the air vents on the motor using avacuum cleaner. Spray the joints and guide pieceswith machine oil from time to time in order to main-tain their smooth movement.In addition it must be checked whether the retracta-ble saw guard moves smoothly. If it does not closeautomatically after having opened it, the machinemust be taken to a MAFELL customer service shop.This should be done after a prolonged period ofoperation even if there are no failures.Only use our special grease, order number 049040(1 kg tin), for all lubrication spots.5.2 Saw bladesThe saw blades used on the machine must be freedfrom resin regularly as clean tools improve the cut-ting quality.For cleaning only acidfree but not highly alkalinecleaning agents may be used.This can be done by soaking the saw blades for 24hours in paraffin, white spirit or commercially availa-ble resin remover.5.3 StorageIf the machine is out of service for a lengthy period oftime, it should be thoroughly cleaned (seechapter 5.1). Spray bright metal panels with a rust-proofing agent.Store the machine only in dry rooms, where it is pro-tected against weathering.6 TroubleshootingSome of the most frequent defects and their causes are listed in the following chart. In case of other defects,contact your dealer or the MAFELL customer service.The determination of the causes of existing defects and their elimination always requireincreased attention and caution. Pull out the mains plug beforehand!Defect Cause EliminationMachine cannot be switched on No mains voltage Check power supplyMains fuse defective Replace fusesCarbon brushes worn Take the machine to a MAFELL cus-tomer service shopMachine stops while cutting is in proc-essMains failure Check mains back-up fuseMachine overloaded Reduce feed speedSaw blade jams as the machine isadvancedFeed rate too fast Release the switch, otherwise themachine would start when pullingbackwards. Reduce feed speedBlunt saw blade Release the switch immediately.Remove the machine from the work-piece and replace the saw bladeTension in the workpiecePoor guiding of machine Use parallel guide fenceUneven workpiece surface Straighten or plane the surfaceBurn marks on kerfs The saw blade used is unsuitable forthe task or bluntReplace saw bladeChip ejection blocked Wood is too dampExtended operation without extraction Connect to an external extractor, e. g.portable dust extractor