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

Kärcher HD 6/16-4 M / MX Service Manual Manual pdf 14 page image

14 English 5.906-246.0 Rev. 01 (09/14)Trigger gun and servopress rotary regulator opened:When the power press regulator is opened all the way, thewater flows from the pressure room through the pressureholding valve via the control pressure injector to the highpressure outlet.The ball of the overflow valve is pressed onto the valveseat by the pump pressure and thus seals the connectingboring to the suction chamber.The manometer displays the working pressure in the pres-sure room.But, due to the affect of the control pressure injector, thereis less pressure in the connecting boring.Servopress rotary regulator partially closed:6.3 Pump diagram6.3.1 HD 6/16-4, HD 9/20-41 Manometer2 Pressure holding valve3 Pressure room with pressure valves4 Pressure switch Q2/B15 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