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flow valve (Optional accessory, order no.
4.440-238) to draw in surface water, e.g.
from water butts or ponds (see specifica-
tions for max. suction height).
î Fill the KÄRCHER suction hose with
backflow valve with water, screw to wa-
ter supply and hang into the water butt.
î Separate the high pressure hose from
the high pressure connection of the ap-
pliance.
î Switch the appliance on (I/ON) for a
max. of 2 minutes and wait until the wa-
ter exits the high-pressure connection
without bubbles.
î Turn off the appliance "0/OFF".
Start up
Caution
Dry runs lasting longer than two minutes
lead to damages to the high pressure
pump. If the appliance does not build up
pressure within two minutes, switch it off
and proceed as instructed in the Chapter
"Troubleshooting".
Illustration
î Push the high pressure hose into the
quick coupling until it locks audibly.
Illustration
î Push the high pressure hose into the
trigger gun until it locks audibly.
Note: Make sure the connection nipple
is aligned correctly.
Check the secure connection by pulling
on the high-pressure hose.
î Push the spray lance into the trigger
gun and fasten it by turning it through
90°.
î Completely open the water tap.
î Insert the mains plug into the socket.
î Turn on the appliance "I/ON".
Operation
Danger
The trigger gun is subjected to a recoil force
when the water jet is discharged. Make
sure that you have a firm footing and are
also holding the trigger gun and spray lance
firmly.
Illustration
î Unlock the lever on the trigger gun.
î Pull on the lever of the trigger gun; the
device will switch on.
Note: Release the lever of the trigger gun;
the device will switch off again. High pres-
sure remains in the system.
Spray lance with pressure regulation
Carrying out the most common cleaning
tasks. The work pressure can be stageless-
ly regulated between "Min" and "Max".
î Release the lever on the trigger gun.
î Turn the spray lance to the desired po-
sition.
Spray lance with Dirtblaster
For particularly dirty items or areas.
Not suitable for use with detergents.
Working with detergent
Please use exclusively KÄRCHER deter-
gents and care products to carry out the re-
spective cleaning task, as these were
specifically developped for your appliance.
The use of other detergents and care prod-
ucts may lead to premature wear and can
invalidate your warranty claims. Please ob-
tain information at your local dealer or re-
quest information directly from KÄRCHER.
î Use spray lance with pressure regula-
tion (Vario Power).
î Turn the spray lance to "Mix" position.
î Fill the detergent solution in the deter-
gent tank (observe dosage instructions
on the packaging of the detergent).
î Adjust the suction volume of the deter-
gent solution by means of the dosage
regulator for detergents.
Turning the regulator to the left: Addi-
tional dosage from the left detergent
tank.
Turning regulator to the right: Additional
dosage from the right detergent tank.
Recommended cleaning method
î Spray the detergent sparingly on the
dry surface and allow it to react, but not
to dry.
î Spray off loosened dirt with the high-
pressure jet.
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