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Karcher K 3.91 Manual

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4 Deutsch
mable, explosive and poisonous. Do not use
acetone, undiluted acids and solvents as
they are damaging to the materials from
which the appliance is made.
ṇ
Warning
The mains plug and the coupling of an exten-
sion cable must be watertight and must never
lay in the water.
Unsuitable extension cables can be hazard-
ous. Only use extension cables outdoors which
have been approved for this purpose and la-
belled with a sufficient cable cross-section: 1 -
10 m: 1.5 mm
2
; 10 - 30 m: 2.5 mm
2
Always fully unroll electrical cables from the ca-
ble drum.
High-pressure hoses, fixtures and couplings
are important for the safety of the appliance.
Only use high-pressure hoses, fixtures and
couplings recommended by the manufacturer.
This appliance is not intended for use by per-
sons with reduced physical, sensory or mental
capabilities.
The appliance must not be operated by chil-
dren or persons who have not been instructed
accordingly.
Children should be supervised to prevent them
from playing with the appliance.
The operator must use the appliance correctly.
When working with the appliance, he must con-
sider the local conditions and pay due care and
attention to other persons, in particular chil-
dren, who are nearby.
Do not use the appliance when there are other
persons around unless they are also wearing
safety equipment.
Wear protective clothing and safety goggles to
protect against splash back containing water or
dirt.
Caution
In case of extended downtimes, switch the ap-
pliance off at the main switch / appliance switch
or remove the mains plug.
Do not operate the appliance at temperatures
below 0 °C.
Observe a distance of at least 30 cm when us-
ing the jet to clean painted surfaces to avoid
damaging paintwork.
Never leave the appliance unattended when it
is in operation.
Make sure that the power cable or extension
cables are not damaged by running over,
pinching, dragging or similar. Protect the power
cable from heat, oil, and sharp edges.
All current-conducting parts in the working area
must be protected against jet water.
The appliance may only be connected to an
electrical supply which has been installed in ac-
cordance with IEC 60364.
The appliance may only be connected to alter-
nating current. The voltage must correspond
with the type plate on the appliance.
For safety reasons, we recommend that you
operate the appliance only via a earth-leakage
circuit breaker (max. 30 mA).
Cleaning operations which produce oily waste
water, e.g. engine washes, underbody washes,
may only be carried out using washing stations
equipped with an oil separator.
This appliance was designed to be used with
detergents which are supplied or recommend-
ed by the manufacturer. The use of other deter-
gents or chemicals may compromise the safety
of the appliance.
Caution
Safety devices protect the user and must not be
modified or bypassed.
The appliance switch prevents unintentional op-
eration of the appliance.
This lock locks the lever of the trigger gun and
prevents the inadvertent start of the appliance.
The overflow valve prevents the permissible
working pressure from being exceeded.
If the lever on the trigger gun is released the
pressure switch turns off the pump, the high-
pressure jet is stopped. If the lever is pulled the
pump is turned on again.
The high pressure hose is specially constructed
with reinforced walls to handle water pressure up
to 13 MPa (1900 psi) - it can be easily damaged
and should be stored carefully.
Do not kink.
Do not drive vehicles over the hose.
Do not expose the hose to sharp edges or
corners.
Misuse will lead to ballooning or premature fail-
ure and will invalidate warranty.
Safety Devices
Power switch
Lock trigger gun
Overflow valve with pressure switch
High pressure hose
10 English
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