Kärcher K 7.300, Manual

Page: 19 / 264

– 9
Check the secure connection by pulling
on the high pressure hose.
Illustration
 Push the high pressure hose into the
trigger gun until it locks audibly.
Note: Make sure the connection nipple
is aligned correctly.
Check the secure connection by pulling
on the high pressure hose.
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Warning
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 con-
sidered 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 supplied coupling element to
the water connection on the appliance.
Push the water supply hose onto the
coupling unit, then connect it to the wa-
ter 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.
 Remove air from appliance before oper-
ation.
Switch on the appliance without con-
nection the high-pressure hose (max. 2
minutes) and run it until the water dis-
charging from the high-pressure outlet
is free of bubbles. Switch off appliance
and reconnect high-pressure hose.
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
 Push the spray lance into the trigger
gun and fasten it by turning it through
90°.
Illustration
 Unwind the high pressure hose from the
hose drum. Hold on to the transport
handle during this procedure.
Note : If the hand crank is in its secured
position, fold it up first.
 Completely open the water tap.
 Completely uncoil the mains cable.
 Insert the mains plug into the socket.
 Turn on the appliance “I/ON”.
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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.
Caution
Prior to cleaning, make sure that the high
pressure is placed safely on level ground.
Connect the high pressure hose to the
hand spray gun
Water supply
Water supply from mains
Drawing in water from open reservoirs
Start up
Operation
19 EN