Kärcher HDS4.0/22 Dealer's Manual

Also see for HDS 3.9/30: Operator's manual Operator's manual

Contents

23OperationsApplying Detergent & GeneralOperating TechniquesWARNING: Some detergentsmay be harmful if inhaled oringested, causing severenausea, fainting or poisoning.The harmful elements maycause property damage orsevere injury.AVERTISSEMENT : Certainsdétergents peuvent êtredangereux s'ils sont inhalés ouingérés, provoquant de fortesnausées, des évanouissements et l'empoisonne-ment. éléments dangereux peuvent causer desdommages à la propriété ou des blessures graves.STEP 1: Use detergent designedspecifically for pressure washers.Household detergents coulddamage the pump. Preparedetergent solution as required bythe manufacturer. Fill a containerwith pressure washer detergent.Place the filter end of detergentsuction tube into the detergentcontainer.STEP 2: Open detergent valve counterclockwise untilyou obtain desired mixture. Detergent will mix with thehigh pressure water stream.STEP 3: With the motor running,pull trigger to operate machine.Liquid detergent is drawn into themachine and mixed with water.Apply detergent to work area. Donot allow detergent to dry onsurface.IMPORTANT: You must flush the detergent fromyour pressure washer after each use by placing thesuction tube into a bucket of clean water, then runthe pressure washer for 1-2 minutes.NOTE: If you remove detergent siphon tube fromcontainer or allow container to empty, it will cause lowpressure by sucking air, which will damagethe pump.Thermal pump protectionIf you run the engine for 3-5 minutes without pressingthe trigger on the spray gun, circulating water in thepump can reach high temperatures. When the waterreaches this temperature, the pump protector engagesand cools the pump by discharging the warm wateronto the ground. This thermal device prevents internaldamage to the pump.WARNINGDetergentValveKarcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 - AY