Safety Devices - Kärcher K 3.91 M Betriebsanleitung

they are aggressive towards the materials
from which the appliance is made.
Warning
The mains plug and the coupling of an exten-
sion cable must be watertight and must nev-
er lay in the water.
Unsuitable extension cables can be hazard-
ous. Only use extension cables outdoors
which have been approved for this purpose
and labelled with a sufficient cable cross-
section: 1 - 10 m: 1.5 mm
mm
2
Always fully unroll electrical cables from the
cable 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 manufactur-
er.
This appliance is not intended to be used by
persons with limited physical, sensory or
mental capacity.
The appliance must not be operated by chil-
dren or persons who have not been instruct-
ed accordingly.
Children should be supervised to prevent
them from playing with the appliance.
The operator must use the appliance cor-
rectly. When working with the appliance, he
must consider the local conditions and pay
due care and attention to other persons, in
particular children, who are nearby.
Do not use the appliance when there are oth-
er 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
Do not operate the appliance at tempera-
tures below 0 °C.
Observe a distance of at least 30 cm when
using 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.
10
English
; 10 - 30 m: 2.5
2
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
accordance with IEC 60364.
The appliance may only be connected to al-
ternating current. The voltage must corre-
spond with the type plate on the appliance.
For safety reasons, we recommend that you
operate the appliance only via a earth-leak-
age circuit breaker (max. 30 mA).
Cleaning operations which produce oily
waste water, e.g. engine washes, underbody
washes, may only be carried out using wash-
ing stations equipped with an oil separator.
This appliance was designed to be used with
detergents which are supplied or recom-
mended by the manufacturer. The use of
other detergents or chemicals may compro-
mise the safety of the appliance.

Safety Devices

Caution
Safety devices protect the user and must not be
modified or bypassed.
Power switch
The appliance switch prevents unintentional op-
eration of the appliance.
Lock trigger gun
This lock locks the lever of the trigger gun and
prevents the inadvertent start of the appliance.
Overflow valve with pressure switch
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 ist stopped. If the lever is pulled the
pump is turned on again.
High pressure hose
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.