Kärcher HDS 3.5/23-4M Eg Manual

Also see for HDS 3.5/23-4M Eg: Operating instructions Manual

Contents

– 4– While reducing the water supply at thepump head or with the Servopress -regulation the overflow valve opens andpart of the water flows back to the pumpsuck side.– If the hand-spray gun is closed, so thatthe whole water flows back to the pumpsuck side, the pressure switch at theoverflow valve shuts down the pump.– If the hand spray gun is opened, thepressure switch on the cylinder headturns the pump back on.The overflow valve is set by the manufac-turer and sealed. Setting only by customerservice.– The safety valve opens, when the over-flow valve resp. the pressure switch isbroken.The safety valve is set by the manufacturerand sealed. Setting only by customer ser-vice.– The water shortage safeguard preventsthe burner to be turned on when there iswater shortage.– A sieve prevents the contamination ofthe safeguard and must be cleaned reg-ular.– The temperature stop switches off themachine when the waste gases havereached very high temperatures. WARNINGRisk of injury! Appliance, accessories, sup-ply lines and connections must be in fault-free condition. If they are not in a perfectstate then the appliance must not be used. Lock parking brake.Figure 3ATTENTIONHook the electric supply line into the cableguide of the right handle bow. Be carefulnot to damage the cable.Figure 4Note: To protect the device, the burner isswitched off 5 hours after the system carecontainer is empty.– The system care prevents the calcifica-tion of the heating spiral while operatingwith calciferous tap water. It is dosedinto the supply in the float containerdrop by drop.– The metering is set to medium water ri-gidity by the manufacturerNote: A sample bundle of system care is in-cluded. Refill system care. Determining the hardness of tap water:– through the public water supply works,– using a hardness tester (order no.6.768-004) Set the service switch according to thewater hardness in the table.Note: Observe the following when usingsystem care Advance 2 RM 111:– Calcification protection: See table– Pump care and black water protection:Set the service switch to at least setting3.Overflow valve with two pressureswitchesSafety valveWater shortage safeguardTemperature stop for exhaust gasesStart upInstalling the handleAttach the wheel capsRefill system careAdjusting the dosage of the systemcare Advance RM 110/RM 111Water hard-ness (°dH)Scale on the service switch<3 OFF (no dosing)3...7 17...14 214...21 3 (presetting)>21 411EN