English17Suctioning water from an open container Screw suction hose with filter(Order no. 4.440-238) to the water outlet. Vent the unit before using. To evacuate air from the unit, unscrew thenozzle and leave the unit running until wa-ter exits with no air bubbles. If necessaryallow unit to continue running for 10 sec-onds and then switch off. Repeat this pro-cedure several times. Switch off the unit and screw the nozzleback on.Operating the unitDanger!Observe the relative safety regulationswhen using the unit at filling stations or otherhigh-risk areas.Caution!Only clean engines in places whichhave appropriate oil separators (protection ofthe environment).Caution!Only wash animals with the low-pressure fan jet (see "Selecting the type ofspray").Caution!Risk of blockaging. Always place thenozzles in the accessories compartment withthe orifice facing upwards.Operating with high pressureThe unit is equipped with a pressure switch.The motor only starts up when the lever is re-tracted. Unwind the high-pressure hose fully fromthe cable drum. Set the unit switch to "I". Unlock the hand-held spray gun and retractthe lever of the gun. Only HD 6/13...:Adjust operating pressureand flow rate (+/–) by rotating the pressure/flow control (infinitely variable).Selecting the type of sprayThe handgun must be closed. Rotate the housing of the nozzle until thedesired symbol corresponds with themarking:High-pressure pencil jetfor particularly stubborn accu-mulation of grime.Low-pressure fan jetfor operating with detergent orcleaning with negligible pressu-re.High-pressure fan jetfor dirt accumulation over a lar-ge surface.Operating with detergentCaution!Unsuitable detergents can harm thecleaner and the object which is to be cleaned.Use only detergents which are released byKärcher. Proportions of detergent to be usedand accompanying instructions should be not-ed carefully. Use detergents sparingly out ofconsideration for the environment.Kärcher cleaning agents guarantee trouble-free operation. Please seek advice or ask forour catalogue of information sheets on clean-ing agents. Pull out the cleaning agent suction hoseand immerse the filter in the cleaning agentcanister. Set nozzle to . Set the detergent metering valve to thedesired concentration.!