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Karcher HD 7-18-4 MX Manual

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– 4
Î Screw the suction hose (order no. 4.440-
270.0) onto the water connection.
Î Filter (Bestell-Nr. 4.730-012.0) am
Saugschlauch anbringen.
Î 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 couple of times.
Î 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.
ṇ Warning
Clean engines only at places with corre-
sponding oil separators (environmental
safety).
The jet must not be directed at other per-
sons or directed by the user at him/herself
to clean clothing or footwear.
Risk of blocking. Place the nozzles in the
accessory compartment with their joint
pointing upward.
Only HD 9/19....
ƽ Danger
Long hours of using the appliance can
cause circulation problems in the hands on
account of vibrations.
It is not possible to specify a generally valid
operation time, since this depends on sev-
eral factors:
– Proneness to blood circulation deficien-
cies (cold, numb fingers).
– Low ambient temperature. Wear warm
gloves to protect hands.
– A firm grip impedes blood circulation.
– Continuous operation is worse than an
operation interrupted by pauses.
In case of regular, long-term operation of
the device and in case of repeated occur-
rence of the symptoms (e.g. cold, numb fin-
gers) please consult a physician.
Note
The appliance is equipped with a pressure
switch. The motor starts up only when the
lever of the pistol is pulled.
Î Roll off the high pressure hose totally from
the hose drum.
Î Set the appliance switch to "I".
Î Unlock the hand-spray gun and pull the le-
ver of the gun.
Î Set working pressure and water quantity by
turning (rungless) at the pressure- and vol-
ume regulator (+/-) (not on HD 9/18 M).
Only on HD 9/20-4...:
For transporting small quantities, the en-
gine heat ensures that water is heated up to
approx. 15 °C.
Î Close the hand spray gun.
Î Turn the casing of the nozzle till the de-
sired symbol matches the marking.
Drawing in water from open reservoirs
Operation
High pressure operation
Select spray type
High pressure circular spray
(0°) for specially stubborn dirt
Flat low pressure spray
(CHEM) for operating using
detergents or cleaning at low
pressure.
High pressure flat spray (25°)
for large dirt areas
21EN
… 21 …


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