Karcher HDS 2000 Operation, Venting the appliance, High-pressure nozzle, Operating with hot water

HDS 2000 Super

GB

5. Operation

5.1Venting the appliance

•Open the water intake.

•Allow the appliance to run without the high- pressure hose until the water emerges without bubbles.

•Then connect the high-pressure hose.

•If the spray lance and high-pressure nozzle have already been fitted to the high-pressure hose, you can vent the appliance as follows: With the hand-held spray gun open, switch the appliance on and off several times at intervals of 10 seconds until the water emerges from the high-pressure hose without bubbles.

5.2High-pressure nozzle

•The effectiveness of the high-pressure jet depends to a great extent on the spray angle. A 25° fan jet nozzle is usually employed (included in standard delivery).

•Other nozzles are available as accessories.

0° full jet nozzle for stubborn dirt.

40° fan jet nozzle for sensitive surfaces.

Dirt blaster

for thick layers of dirt.

Variable angle nozzle with adjustable spray angle

5.3Adjusting the Operating Pressure and Flow Rate

With the servo pressure valve on the hand spray gun

–Adjust operating pressure and flow rate (+/–) by rotating the pressure/flow control (infinitely variable).

The two pumps are switched in and out via pressure switches depending on the demand for water.

5.4Operating with cold water

•Switch the appliance switch to “”.

5.5Operating with hot water

•Set the thermostat to the desired temperature.

•We recommend the following cleaning temperatures:

30–50 °C	for light dirt
max. 60 °C	for dirt which contains protein,
	e.g. in the food industry
60–90 °C	for cleaning vehicles, machines

•Switch the appliance switch to “”.

•If you also increase the operating pressure and flow rate, you also change the water temperature.

•At first always direct the high-pressure jet from a greater distance at the object which is to be cleaned, thereby preventing damage from excessive pressure.

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