Operating Instructions English27— If direction of rotation is correct, powerfuljet of air will be felt at exhaust-gasopening of burner.— If the direction of rotation iswrong: Change the poles at the unitplug. See Fig. 18.! When an extension cable is used itshould always be complety unwoundand have an adequate cross-section.OperationSwitch on the machine! Set unit switch (item 23) to "I"Ready for working indicator lamp (item 29)is litWarning!The temperature regulator (item 24) mustbe set to "0", since otherwise the burnerpossibly switches onUnit starts up briefly and is switched off assoon as operating pressure is reached.Stop the unit immediately when one of theindicator lamps (items 25-28) light upduring operation. Eliminate fault, refer toFaults.Fig. 9! Release the safety of the handgun (A)Actuation of handgun switches unit back onagain.Bleed pump if no water emerges from high-pressure nozzle. See problems, "Unit doesnot build up pressure"Setting cleaning temperature! Set the remperature regulator (item 24)to the required temperature30°C to 90°CHot water cleaning100°C to 150°CCleaning with steam! Replace high-pressure nozzle by thesteam nozzle (see operation usingsteam)Setting operating pressure andflow rateFig. 10— Turning control spindleclockwise: Increasing operating pressure(MAX)— Turning it counterclockwise: Reducingoperating pressure (MIN)Servopress control! Set the temperature regulator (item 24)to max. 98°C.! Set regulator to maximum operatingpressure.Fig. 9Adjust operating pressure and flow rate byturning (infinitely variable) at the pressureand flow control (B) (+/-)Set pressure on unit if use is to be made ofreduced pressure for a lengthy period.See Fig. 10