Kärcher HD 6/16-4 M / MX Service Manual

Kärcher HD 6/16-4 M / MX Service Manual Manual pdf 18 page image

18 English 5.906-246.0 Rev. 01 (09/14)Servopress rotary regulator partially closed:With the power press regulator partially closed, the pres-sure in the pressure room will not rise any further. Howev-er, due to less water volume, the effect of the controlpressure injector decreases, so that the pressure in theconnecting boring rises. Thus, the piston rod is pressedslightly to the right against the spring pressure. The conetip of the rod slightly pushes the ball out of its seat so thata part of the flow rate flows to the suction chamber.The pressure switch is slightly pushed to the right due tothe increased pressure in the connecting boring, but not farenough to switch off the pressure switch.Trigger gun closed:1 Manometer2 Pressure holding valve3 Pressure room with pressure valves4 Pressure switch Q25 Connecting boring to overflow valve6 Overflow valve ball7 Connecting boring to suction room8 Piston rod9 Connecting boring from the overflow valveto the control pressure injector10 Detergent injector11 High pressure outlet12 Control pressure injector