Operation - Kärcher HD 3.0/20-4 M Ea Operating Manual

Connect filter (order-no. 4.730-

012.0) to suction hose.
Deaerate the appliance:

Unscrew the nozzle.
Switch on the appliance and let it run
until the water exiting is bubble-free.
At the end let the appliance run for
approx. 10 seconds - then switch
off. Repeat the procedure for a cou-
ple of times.
Switch off the appliance and fit the

nozzle again.

Operation

Danger
Risk of explosion!
Do not spray flammable liquids.
If the appliance is used in hazardous
areas (e.g. filling stations) the corre-
sponding safety provisions must be ob-
served.
Caution
Clean engines only at places with cor-
responding oil separators (environ-
mental safety).
High pressure operation
Note
The appliance is equipped with a pres-
sure switch. The motor starts up only
when the lever of the pistol is pulled.
Set the appliance switch to "I".

Unlock the hand-spray gun and pull

the lever of the gun.
Set working pressure and water

quantity by turning (rungless) at the
pressure and quantity regulation (+/
-).
Select spray type
Close the hand spray gun.

Turn the casing of the nozzle till the

desired symbol matches the marking.
Select round or flat spray using

touch-less switching:
Turn the spray-pipe that is inclined
about 45° downward to the left or
the right.
High pressure circular
spray (0°) for specially
stubborn dirt
Flat low pressure spray
(CHEM) for operating us-
ing detergents or cleaning
at low pressure.
High pressure flat spray
(25°) for large dirt areas
Operation with detergent
Warning
Unsuitable detergents can cause dam-
age to the appliance and to the object
to be cleaned. Use only those deter-
gents that have been approved by
Kärcher. Observe the dosage and oth-
er instructions provided with these de-
tergents. For considerate treatment of
the environment use detergent eco-
nomically.
Follow the safety instructions for using
detergents.
Kärcher detergents ensure smooth
functioning. Please consult us or ask
for our catalogue or our detergent in-
formation sheets.
Place the detergent bottle into the

bottle holder on the appliance or
place a detergent container next to
the appliance.. Two different deter-
gents can be simultaneously placed
into the appliance.
Pull the detergent suction hose out

and immerse it into the detergent
bottle or container.
Screw the lid onto the bottle or the

container.
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EN 9