Kärcher HDS 7/11-4 M, Instruction Manual

Page: 12 / 25

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 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