Description Of The Appliance; Before Startup; Water Supply - Kärcher K 3.91 M Betriebsanleitung

Operation

Description of the Appliance

When unpacking the product, make sure that no
accessories are missing and that none of the
package contents have been damaged. If you
detect any transport damages please contact
your dealer.
Illustrations on Page 2
1 Appliance switch "0/OFF"/ „I/ON"
2 Mains cable with mains plug
3 High pressure connection
4 High pressure hose
5 Trigger gun
6 Lock trigger gun
7 Water connection
8 Coupling element for water connection
9 Detergent Tank
10 Suction hose for detergent
11 Storage for trigger gun
12 Storage for spray lance
13 Storage for high-pressure hose
14 Transport handle
15 Spray lance with pressure regulation (Vario
Power)
16 Spray lance with dirt blaster
Special accessories
Special accessories expand the possibilities of
using your appliance. Please contact your
KÄRCHER dealer for further information.

Before Startup

Illustration
Mount loose parts delivered with appliance prior
to start-up.
Illustration
Pull out the clamp for the high-pressure hose
from the trigger gun (e.g. a small screwdriv-
er).
Connect high pressure hose to trigger gun.
Push the clamp in until it locks. Check the se-
cure connection by pulling on the high-pres-
sure hose.

Water supply

According to the applicable regula-
tions, the appliance must never be
used on the drinking water supply with-
out 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 sys-
tem separator is considered non-drinkable.
Note: Impurities in the water can damage the
high-pressure pump and accessories. For pro-
tection, the use of the KÄRCHER water filter (op-
tional accessory, order no. 4.730-059) is
recommended.
Water supply from mains
Observe regulations of water supplier.
For connection values, see type plate/technical
data.
Use a fibre-reinforced water hose (not in-
cluded) with a standard coupling. (Minimum
diameter 1/2 inch (13 mm), minimum length
7.5 m).
Illustration
Screw the coupling unit (supplied) to the wa-
ter connection on the appliance.
Push the water supply hose onto the cou-
pling unit, then connect it to the water supply.
Drawing in water from open reservoirs
This high-pressure cleaner is suited to work with
the KÄRCHER suction hose with backflow valve
(Optional accessory, order no. 4.440-238) to
draw in surface water, e.g. from water butts or
ponds (see specifications for max. suction
height).
Fill the KÄRCHER suction hose with back-
flow valve with water, screw to water supply
and hang into he water butt.
Separate the high pressure hose from the
high pressure connection of the appliance.
Switch the appliance on "I/ON" and operate
until the water exits the high-pressure con-
nection without bubbles.
Turn off the appliance "0/OFF".
Start up
Caution
Never operate the high-pressure cleaner when
the tap is turned off as dry running will damage
the high-pressure pump.
Illustration
Connect the high pressure hose to the high
pressure connection of the appliance.
Illustration
Push the spray lance into the trigger gun and
fasten it by turning it through 90°.
Completely open the water tap.
Insert the mains plug into the socket.
Turn on the appliance "I/ON".
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English