English Operating Instructions28Mains connectionSee technical data and rating plate forconnected load.Warning!It is not permissible to exceed themaximum permissible mains impedance atthe electrical terminal (see Technical Data).Warning!Whenever socket is changed, checkdirection of rotation of motor— 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.OperationWarning!(Applies only to HDS Super M / MX Eco)Lengthy operation of the unit can lead tovibration-related circulatory disturbances ofthe hands.A generally valid use duration cannot bespecified, since this is dependent uponseveral influence factors:— Personal predisposition to badcirculation(frequent suffering from coldfingers, pins and needles in fingers).— In low ambient temperatures. Wearwarm gloves to keep hands warm.— Gripping tightly impedes circulation.— Continuous operation is moredetrimental than operation interrupted bybreaks.We recommend a medical examination ifthe unit is regularly used for extensive,continuous operation and thecorresponding symptoms (such as, forexample, pins and needles in fingers orcold fingers) are recurrentp.Switch on the machine! Set unit switch (item 23) to "I"Ready for working indicator lamp (item28)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 25-27) 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"