Karcher K 3.450 Manual - page 7
English 7
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 considered non-drinkable.
-CAUTION
Always connect the system separator to
the water supply, never directly to the appli-
ance!
Note: Impurities in the water can damage
the high-pressure pump and accessories.
For protection, the use of the KÄRCHER
water filter (optional accessory, order no.
4.730-059) is recommended.
Observe regulations of water supplier.
For connection values, see type plate/tech-
nical data.
Use a fibre-reinforced water hose (not
included) with a standard coupling.
(Minimum diameter 1/2 inch (13 mm),
minimum length 7.5 m).
Illustration
Screw the coupling element to the wa-
ter connection on the appliance.
Screw the supplied garden hose con-
nector on to the end of your garden
hose.
Push the garden hose connector on to
the water inlet connector and make
sure you hear it click into place before
proceeding.
Connect the water supply hose to the
water supply.
This high-pressure cleaner is suited to work
with the KÄRCHER suction hose with back-
flow valve (Optional accessory, order no.
4.440-238) to draw in surface water, e.g.
from water butts or ponds (see specifica-
tions for max. suction height).
Fill the KÄRCHER suction hose with
backflow valve with water, screw to wa-
ter supply and hang into the water butt.
Separate the high pressure hose from
the high pressure connection of the ap-
pliance.
Switch the appliance on (I/ON) for a
max. of 2 minutes and wait until the wa-
ter exits the high-pressure connection
without bubbles.
Turn off the appliance "0/OFF".
CAUTION
Dry runs lasting longer than two minutes
lead to damages to the high pressure
pump. If the appliance does not build up
pressure within two minutes, switch it off
and proceed as instructed in the Chapter
"Troubleshooting".
Illustration
Connect the high pressure hose to the
high pressure connection of the appli-
ance.
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”.
몇 DANGER
The trigger gun is subjected to a recoil force
when the water jet is discharged. Make
sure that you have a firm footing and are
also holding the trigger gun and spray lance
firmly.
Unlock the lever on the trigger gun.
Pull on the lever of the trigger gun; the
device will switch on.
Note: Release the lever of the trigger gun;
the device will switch off again. High pres-
sure remains in the system.
Carrying out the most common cleaning
tasks. The work pressure can be infinitely
Water supply
Water supply from mains
Drawing in water from open reservoirs
Start up
Operation
Spray lance with pressure regulation