– 4– Continuous operation is worse than anoperation interrupted by pauses.In case of regular, long-term operation ofthe device and in case of repeated occur-rence of the symptoms (e.g. cold, numb fin-gers) please consult a physician.CautionClean engines only at places with corre-sponding oil separators (environmentalsafety).The appliance can be operated in a verticalor horizontal position.NoteThe appliance is equipped with a pressureswitch. The motor starts up only when thelever of the pistol is pulled. Device with hose drum:Roll off the high pressure hose totallyfrom the hose drum. Set the appliance switch to "I". Unlock the hand-spray gun and pull thelever of the gun. Close the hand spray gun. Turn the casing of the nozzle till the de-sired symbol matches the marking. WarningUnsuitable detergents can cause damageto the appliance and to the object to becleaned. Use only those detergents thathave been approved by Kärcher. Observethe dosage and other instructions providedwith these detergents. For consideratetreatment of the environment use detergenteconomically.Follow the safety instructions for using de-tergents.Kärcher detergents ensure smooth func-tioning. Please consult us or ask for our cat-alogue or our detergent information sheets. Take out detergent suck hose. Adjust the suction volume of the deter-gent solution at the detergent filter. Suspend end of suction hose in a con-tainer filled with detergent. Set nozzle to "CHEM". Spray the detergent sparingly on thedry surface and allow it to react, but notto dry. Spray off loosened dirt with the high-pressure ray. Set the suction flow on the detergent fil-ter to the maximum quantity after oper-ation. Start the appliance and rinse for oneminute. Release the lever of the hand-spraygun; the device will switch off.Note:When switching off the appliance, the waterpressure is reduced by approx. 70%. Thisreduces the actuating force of the handspray gun and the service life of the appli-ance is increased. Release again the lever of the hand-spray gun; the device will switch onagain.High pressure operationSelect spray typeHigh pressure circular spray(0°) for specially stubborn dirtFlat low pressure spray(CHEM) for operating usingdetergents or cleaning at lowpressure.High pressure flat spray (25°)for large dirt areasOperation with detergentRecommended cleaning methodInterrupting operation20 EN