– 6outdoors which have been approvedfor this purpose and labelled with a suf-ficient cable cross section:For connection values, see type plate/technical data. WarningObserve regulations of water supplier.According to the applicableregulations, the appliancemust never be used on thedrinking water supply without a systemseparator. Use a suitable system sep-arator manufactured by KÄRCHER; or,as an alternative, a system separatoras per EN 12729 Type BA. Water flow-ing through a system separator is con-sidered non-drinkable.CautionAlways connect the system separatorto the water supply, never directly tothe appliance!For connection values refer to techni-cal specifications Connect the supply hose (minimumlength 7.5 m, minimum diameter 3/4“) to the water connection point ofthe machine and at the water sup-ply point (for e.g. a tap).NoteThe supply hose is not included. Open the water supply. Screw the suction hose with filter(order no. 4.440-238.0) to the waterconnection. Deaerate the appliance:Unscrew the nozzle.Switch on the appliance and let itrun until the water exiting is bubble-free. Switch off the appliance and fit thenozzle again. DangerRisk of injury! Never use the appliancewithout the spray lance attached.Check and ensure proper fitting of thespray lance prior to each use. Thescrew connection of the spray lancemust be fingertight.Risk of explosion!Do not spray flammable liquids.If the appliance is used in hazardousareas (e.g. filling stations) the corre-sponding safety provisions must be ob-served. WarningClean engines only at places with cor-responding oil separators (environ-mental safety).NoteThe appliance is equipped with a pres-sure switch. The motor starts up onlywhen the lever of the pistol is pulled. Set the appliance switch to "I".Control lamp glows green. Unlock the hand-spray gun and pullthe lever of the gun. DangerWhen adjusting the pressure/quantityregulation, make sure that the screwconnection of the spray lance does notbecome loose. Set working pressure and flow ratethrough turning (runless) at thepressure- and amount regulation(B) (+/-).Water connectionConnection to the water supplyDrawing in water from open reser-voirsOperationHigh pressure operation8 EN