– 8Switch off the motor and remove the sparkplug connector prior to performing any workon the appliance.Risk of burns! Do not touch hot mufflers,cylinders or radiator ribs.Note:Used oil must only be disposed of by thedesignated collection points. Please turn inused oil there. Polluting the environmentwith used oil is prosecutable.You can sign with your dealer a contract forregular safety inspection or even sign amaintenance contract. Please take adviceon this matter. Check the high pressure hose for dam-ages (risk of bursting).Please arrange for the immediate ex-change of a damaged high-pressurehose. Check appliance (pump) for leaks.3 drops per minute are permitted andcan come out from the lower side of theappliance. Call Customer Service ifthere is heavy leakage. Check oil level Please contact Custom-er Service immediately if the oil is milky(water in oil). Clean water filter. Oil change.Note:See "Specifications" for oil volume andtype. Unscrew oil drain plug. Drain the oil in a collection basin. Fix in the oil drain screw and tighten it.Torque 20...25 Nm. Turn the oil fill screw out. Fill in new oil slowly; air bubbles shouldgo out.The oil level must be at the centre of theoil level display. Screw in oil filling screw.Carry out maintenance tasks to the engineaccording to the specifications provided inthe operating instructions of the enginemanufacturer. DANGERRisk of injury if the machine is left runningin an unattended state.Switch off the motor and remove the sparkplug connector prior to performing any workon the appliance.Risk of burns! Do not touch hot mufflers,cylinders or radiator ribs.Contact an authorised customer serviceperson in case of problems not mentionedin this chapter or if you are in doubt or whenyou have been explicitly asked to do so.Follow operating instructions of the enginemanufacturer!– Operating speed of the engine is toolow Check operating speed of the engine(refer to technical data).– Nozzle is blocked/ washed out Clean/ replace nozzle.– Filter in the water connection is dirty Clean filter.– Air within the system Appliance ventilation:– Amount of water supply is too low. Check water supply level (refer to tech-nical data).– Pipe inlets to pump are leaky or blocked Check all inlet pipes to the pump.– Pump leakyNote:3 drops/minute are allowed.Safety inspection/ maintenancecontractBefore each useWeeklymonthly or after 500 operatinghoursOil changeMotorTroubleshootingAppliance is not runningDevice is not building up pressureDevice leaks, water drips from thebottom of the device22 EN