116 English 5.906-432.0 Rev. 00 (06/15)1 Adjustment screw, high pressure2 Lock nut, adjustment screw, high pressure3 Spindle, pressure and quantity regulation4 Adjustment screw, low pressure5 Lock nut, adjustment screw, low pressure6 Housing, overflow valve Fasten the test manometer to the high-pressure con-nection. Connect high-pressure hose with standard gun to thetest pressure gauge. Install the new high pressure nozzle. Open standard gun. Turning on the appliance. Rotate the rotating handle of the pressure regulator onthe pump anti-clockwise (direction "-") all the way to thestop. Pull off the rotary handle. Loosen the locknut of the adjustment screw for lowpressure. Turn the adjustment screw low pressure and the spin-dle until the minimum working pressure is reached.NoteIf this screw is turned clockwise, the pressure is increased;and if it is turned counter-clockwise, the pressure is de-creased. Secure the adjustment screw for low pressure by tight-ening the locknut. Check the working pressure, feed volume and switchpoints of the pressure switches. Then seal this setting.NoteWith minimum pressure and volume adjustments andwhen using the supplied steam nozzle, the pressure mustnot exceed 32 bar.Service group does not contain any maintenance and in-spection points.7.50.2 Setting the minimum working pressure8 Care and maintenance