Kärcher HDS 7/11-4 M, Instruction Manual

– 7



Set appliance switch to desired operat-
ing mode.
Indicator lamp for operational readiness 
lights up.

The device starts briefly and turns off, as 
soon as the working pressure is reached.

Note:

 If the indicator lamps for pump, rota-

tion direction, burner malfunction or engine 
are on during operation, turn off the appli-
ance immediately and repair malfunction, 
refer to "Help with malfunctions".



Release the trigger gun.

When activating the hand spray gun the de-
vice switches back on.

Note:

 If no water comes out of the high 

pressure nozzle, vent pump. Refer to "Help 
with malfunctions - appliance is not building 
up pressure".



Set temperature regulator to desired 
temperature.

30 °C to 98 °C

–

Clean with hot water.

100 °C to 150 °C

–

Clean using steam. 





Replace the high-pressure nozzle 
(stainless steel) with steam nozzle 
(brass), (refer to "Using steam").



Turn the regulation spindle in a clock-
wise direction: Increase working pres-
sure (MAX). 



Turn the regulation spindle in an anti-
clockwise direction: Reduce working 
pressure (MIN). 



Set thermostat to max. 98 °C.



Set the operating pressure on the pump 
unit to the maximum value.



Set the working pressure and feed 
quantity by turning (steplessly) the 
pressure/quantity regulation mecha-
nism at the hand spray gun (+/-).



Danger

When adjusting the pressure/quantity regu-
lation, make sure that the screw connection 
of the spray lance does not become loose.

Note:

 For long term work with low pres-

sure, set pressure at the pump unit.

–

For considerate treatment of the envi-
ronment use detergent economically.

–

The detergent must be suitable for the 
surface to be cleaned.



With support of the detergent dose 
valve set detergent concentration as 
determined by the manufacturer.

Note:

 Recommended values at the control 

panel at maximum working pressure.



Set pressure/temperature and deter-
gent concentration according to the sur-
face to be cleaned.

Note:

 To prevent damage due to too much 

pressure, always position high pressure ray 
first from a greater distance towards object 
to be cleaned.

–

Loosen the dirt:



Spray detergent economically and let it 
work for 1...5 minutes but do not let it 
dry up.

–

Remove the dirt:



Spray off loosened dirt with the high 
pressure jet.

Turning on the Appliance

Adjust cleaning temperature

Set working pressure and flow rate

Pressure/quantity regulation of the 
pump unit

Pressure/ quantity regulation at the 
hand spray gun

Operation with detergent

Cleaning

Recommended cleaning method

30

EN