Kärcher HDS 9/20-4 M Classic Bedienungsanleitung Seite 15

Operation
DANGER
Flammable fluids
Risk of explosion
Do not spray inflammable liquids.
DANGER
Operation without spray lance
Risk of injury
Never operate the device without the spray lance in-
stalled.
Before each use, check that the spray lance is firmly
seated. The screw connection of the spray lance must
be tightened hand tight.
DANGER
High pressure water stream
Risk of injury
Never fasten the trigger in the actuated position.
Before doing any work on the device, secure the high-
pressure gun by pushing the safety latch forward.
Hold the high-pressure gun and spray lance with both
hands.
DANGER
Danger due to damaged mains cable
Electric shock
Make sure that the mains cable is not in contact with the
burner (hot) during operation.
ATTENTION
Operation with an empty fuel tank
Destruction of the fuel pump
Never operate the device with an empty fuel tank.
Changing nozzles
1. Switch off the device and operate the high-pressure
gun until the device is depressurized.
2. Lock the high-pressure gun by pushing the safety
latch forwards.
3. Change the nozzle.
Switching on the device
1. Set the trigger to the operating mode. The device
starts up briefly and switches off as soon as the
working pressure is reached.
2. Unlock the high-pressure gun by pushing the safety
latch to the rear. When the high-pressure gun is ac-
tuated, the device switches on again.
Note
If no water comes out of the high-pressure nozzle, bleed
the pump. See help in the event of malfunctions – de-
vice does not build up pressure.
Polarity inverter switch
1. Operate the device in cold water mode.
2. Check the correct direction of rotation of the blower:
While doing so, hold your hand over the chimney
and check whether an airflow can be felt.
3. If airflow is noticeable: The direction of rotation is
correct.
4. If airflow is not noticeable: Swap the pins on the po-
larity inverter switch.
Illustration C
Setting the working pressure and flow rate
Pressure/quantity regulator of the pump unit
1. Turn the regulating spindle clockwise: Increase the
working pressure (MAX).
2. Turn the regulating spindle anticlockwise: Reduce
the working pressure (MIN).
Note
Always initially direct the high-pressure jet at the object
to be cleaned from a distance and with low temperature
to avoid damage due to excessive pressure or temper-
ature.
1. Set the cleaning temperature according to the sur-
face to be cleaned.
Cold water operation
For removing light contamination and for rinsing,
e.g. garden machines, terrace, tools.
The device works in the most economical temperature
range (max. 60 °C).
Operation with hot water
DANGER
Hot water
Risk of scalding
Avoid contact with hot water.
DANGER
Danger due to excessive temperatures
Danger of scalding
To avoid hazards from excessive temperatures, you
must set the pressure/quantity regulator of the pump
unit to MAX at work temperatures above 60 °C.
Note
When working frequently above 50 °C with tap water
containing lime (water hardness above 12 °dH), we rec-
ommend installing the float tank attachment kit to pre-
vent calcification of the heating coil.
Note
After operation with hot water, water drops may occa-
sionally escape from the safety valve due to the residual
heat in the boiler.
1. Set the power switch to the desired temperature.
Recommended cleaning temperatures
● 30-50 °C: Light soiling
● Max. 60 °C: Soiling containing protein, e.g. in the
food industry
● 60-90 °C: Car cleaning, machine cleaning
Interrupting operation
1. Lock the high-pressure gun by pushing the safety
latch forwards.
Switching off the device
DANGER
Hot water hazard
Risk of scalding
After operation with hot water, the device must be oper-
ated with an opened gun with cold water for at least 2
minutes.
1. Close the water inlet.
2. Open the high-pressure gun.
3. Switch on the pump with the power switch and let it
run for 5-10 seconds.
4. Close the high-pressure gun.
5. Set the power switch to "0".
6. Only pull the mains plug out of the socket only when
your hands are dry.
7. Remove the water connection.
English
Cleaning
Eco level
15