Kärcher HDS 9/20-4 M Bedienungsanleitung Seite 22

Steam operation
DANGER
Hot steam
Risk of scalding
At work temperatures above 98 °C, the working pres-
sure must not exceed 3.2 MPa (32 bar).
It is therefore essential that the following measures are
carried out:
1. Replace the high-pressure nozzle (stainless steel)
with the steam nozzle (brass, part no. see Technical
Data).
2. Completely open the pressure/quantity regulator on
the high-pressure gun, towards + as far as it will go.
3. Set the working pressure on the pressure/quantity
regulator of the pump unit to the minimum value.
4. Set the power switch to min. 100 °C.
Interrupting operation
1. Lock the high-pressure gun by pushing the safety
latch forwards.
After operation with detergent
1. Set the detergent dosing valve to "0".
2. Set the power switch to level 1 (operation with cold
water).
3. Flush the device clean for at least 1 minute with the
high-pressure gun open.
Switching off the device
DANGER
Risk of injury from hot water or steam
Risk of scalding
After operation with hot water or steam, the device must
be operated with the gun opened with cold water for at
least two minutes to cool it down.
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. Snap the spray lance into the holder on the device
cover.
2. Roll up the high-pressure hose and the electrical
line and hang them on the supports.
3. Device with a hose reel: Stretch out the high-pres-
sure hose before winding it up.
4. Device with a hose reel: Unlock the hose reel by
pulling on the high-pressure hose and let the high-
pressure hose slowly roll up. Control the reeling
speed by holding the hose.
22
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 detergent tank.
2. Drain the water.
3. 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.
Flushing device with antifreeze
Note
Observe the handling instructions of the anti-freeze
manufacturer.
1. Pour a commercially available antifreeze into the
float tank.
2. Switch on the device (without burner) and allow it to
run until the device is completely flushed.
This also provides a certain degree of corrosion protec-
tion.
ATTENTION
Improper transport with a factory truck
Risk of damage
Pay attention to the orientation of the device when
transporting it with a factory truck.
Illustration L
ATTENTION
Improper transportation
Risk of damage
Protect the trigger of the high-pressure gun from damage.
CAUTION
Failure to observe the weight
Risk of injury and damage
Be aware of the weight of the device during transporta-
tion.
1. When transporting the device in vehicles, secure it
to prevent it from slipping or overturning in accord-
ance with the respectively applicable guidelines.
CAUTION
Failure to observe the weight
Risk of injury and damage
Be aware of the weight of the device during storage.
English
Frost protection
Shutting down
Draining the water
Transport
Storage