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

Kärcher HD 6/16-4 M / MX Service Manual Manual pdf 17 page image

English 5.906-246.0 Rev. 01 (09/14) 17Trigger 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.6.3.2 HD 7/18-4, HD 9/191 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