Kärcher HDS 10/21-4 M Classic Mode D'emploi page 15

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).
Cleaning
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.
Eco level
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
After operation with hot water, water droplets 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.
8. Actuate the high-pressure gun until the device is
completely depressurised.
9. Lock the high-pressure gun by pushing the safety
latch forwards.
Storing the device
Note
Do not kink the high-pressure hose or the electrical line.
1. Insert the high-pressure gun in the support on the
frame together with the spray lance.
2. Roll up the high-pressure hose and the electrical
line and hang them on the supports.
ATTENTION
Frost hazard
Destruction of the device through freezing water
Store the device that has not been completely drained
of water in a frost-free place.
In the case of devices that are connected to a chimney,
the ingress of cold air must be taken into account.
ATTENTION
Cold air entering through the chimney
Risk of damage
When the exterior temperatures are below 0 °C, discon-
nect the device from the chimney.
1. Shut down the device if frost-free storage is not pos-
sible.
For longer breaks in operation or when frost-free stor-
age is not possible:
1. Drain the water.
2. Flush the device with antifreeze.
1. Unscrew the water supply hose and the high-pres-
sure hose.
2. Unscrew the supply line at the boiler base and allow
the heating coil to drain.
3. Allow the device for run for a maximum of 1 minute
until the pump and lines are empty.
English
Frost protection
Shutting down
Draining the water
15