Karcher HD 10-21 4 SX Plus - Manual (Page 18)

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Warning
Observe regulations of water supplier.
According to the applicable regula-
tions, the appliance must never be
used on the drinking water supply
without a system separator. Use a
suitable system separator manufactured by
KÄRCHER; or, as an alternative, a system
separator as per EN 12729 Type BA. Water
flowing through a system separator is con-
sidered non-drinkable.
Caution
Always connect the system separator to the
water supply, never directly to the appliance!
For connection values refer to technical
specifications

Connect the supply hose (minimum
length 7.5 m, minimum diameter 3/4“) to
the water connection point of the ma-
chine and at the water supply point (for
e.g. a tap).
Note
The supply hose is not included.

Open the water supply.
 Screw the suction hose with filter (order
no. 4.440-238.0) to the water connection.
 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 ap-
prox. 10 seconds - then switch off. Re-
peat the procedure for a couple of
times.
 Switch off the appliance and fit the noz-
zle again.
ƽ
Danger
Risk of explosion!
Do not spray flammable liquids.
If the appliance is used in hazardous areas
(e.g. filling stations) the corresponding
safety provisions must be observed.
Caution
Clean engines only at places with corre-
sponding oil separators (environmental
safety).
Risk of blocking. Place the nozzles in the
accessory compartment with their joint
pointing upward.
Note
The appliance is equipped with a pressure
switch. The motor starts up only when the
lever of the pistol is pulled.

Roll off the high pressure hose totally
from the hose drum.
 Set the appliance switch to "I".
 Unlock the hand-spray gun and pull the
lever of the gun.
ṇ
Warning
Unsuitable detergents can cause damage
to the appliance and to the object to be
cleaned. Use only those detergents that
have been approved by Kärcher. Observe
the dosage and other instructions provided
with these detergents. For considerate
treatment of the environment use detergent
economically.
Follow the safety instructions for using de-
tergents.
Kärcher detergents ensure smooth func-
tioning. Please consult us or ask for our cat-
alogue or our detergent information sheets.

Fill detergent tank.
 Replace high pressure nozzle with a
low pressure nozzle (size 250, attach-
ment).
 Set dosing value for detergent to the
desired concentration.
Water connection
Connection to the water supply
Drawing in water from open reservoirs
Operation
High pressure operation
Operation with detergent
18 EN