English 5.906-736.0 Rev. 00 (07/15) 27HDS 9/50, HDS 13/35 only:NOTEIf the motor speed is increased, the operating pressurealso rises. This can be read from the pressure gauge.– Increasing the speed: Push up the lever of the speed control.– Reducing the speed: Push down the lever of the speed control.HDS 13/20, HDS 17/20 only: Set (+/-) the working pressure and quantity by turningthe pressure/ quantity regulation mechanism at thehand spray gun. DANGERWhen adjusting the pressure/quantity regulation, makesure that the screw connection of the spray lance does notbecome loose.HDS 13/20, HDS 17/20 only:1 Dosage valve for detergent2 Cleaning agent containerATTENTIONUnsuitable detergents can cause damage to the applianceand to the object to be cleaned. Place the detergent suction hose in a container filledwith detergent and tighten the screw cap. Set dosing value for detergent to the desired concen-tration.After operation with detergent Set dosing value for detergent to "0". Open the hand spray gun and rinse the appliance for atleast 1 minute.8.1.4 Speed control for pressure and volume regulationHDS 9/50 HDS 13/35Minimum water volume [l/h] 500 650Minimum pressure (specifica-tion operating instructions)[bar]150 100Minimum pressure (measured)[bar]146 928.1.5 Set working pressure and flow rateHDS 13/20 HDS 17/20Minimum water volume [l/h] 900 950Minimum pressure (specifica-tion operating instructions)[bar]60 60Minimum pressure (measured)[bar]69 518.1.6 Operation with detergent