– 7 Check the high pressure hose for dam-ages (risk of bursting). Please arrangefor the immediate exchange of a dam-aged high-pressure hose. Check oil level.Please contact Customer Service immedi-ately if the oil is milky (water in oil). Clean the sieve in the water connection. Clean filter at the detergent suck hose. Oil change.Oil change: Ready a catch bin for appr. 1 Liter oil. Turn out the oil drain screw. Drain the oil in a collection basin. Turn out the oil drain screw. Slowly fill in new oil until the "MAX"marking on the oil sight glass.Note: Air pockets must be able to leak out.For oil type refer to technical specifica-tions. WarningRisk of injury if the machine is left runningin an unattended state. Remove the sparkplug before doing any work on the appli-ance.Risk of burns! Do not touch hot silencers,cylinders or radiator ribs.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 set to "CHEM" Set nozzle to "High pressure".– Nozzle is blocked/ washed out Clean/ replace nozzle.– Filter at 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. With stronger leak, have devicechecked by customer service.– Inlet pipes to the pump are leaky. Check all inlet pipes to the pump.– Air within the system Appliance ventilation:Maintenance intervalsDailyWeeklyMonthlyAfter 500 operating hours, at least annu-allyMaintenance WorksHigh-pressure pumpDispose of old oil ecologically or turn it inat a collection point.TroubleshootingAppliance is not runningDevice is not building up pressureDevice leaks, water drips from thebottom of the devicePump is vibrating18 EN