Karcher K 7 - Manual (Page 19)

– 9
Caution
Impurities in the water can damage the
high-pressure pump and the accessories.
For protection, the use of the KÄRCHER
water filter (optional accessory, order no.
4.730-059) is recommended.
For connection values, see type plate/tech-
nical data.
Observe regulations of water supplier.
ṇ
Warning
According to applicable regulations, the ap-
pliance must never be used on the drinking
water net without a system separator. A
suitable system separator by KÄRCHER or
alternatively a system separator according
to EN 12729 type BA must be used.
Water that has flown through a system sep-
arator is no longer classified as drinking
water.
Caution
Always connect the system separator to
the water supply, never directly to the appli-
ance!
Illustration

Screw the coupling element to the wa-
ter connection on the appliance.
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 suction hose with water.
 Screw the suction hose into the water
connection of the appliance and insert it
into the water source (e.g. rainwater
drum).
Caution
Dry running of more than 2 minutes leads to
damage of the high-pressure pump. If the
appliance does not build up pressure within
2 minutes, switch the appliance off and pro-
ceed in accordance with the instructions in
Chapter "Troubleshooting".
Illustration

Push the high pressure hose into the
quick coupling until it locks audibly.
Note: Make sure the connection nipple
is aligned correctly.
 Check the secure connection by pulling
on the high pressure hose.
 Attach the water supply hose to the
coupling on the water connection.
Note: The supply hose is not included.
 Connect the water supply hose to the
water supply.
 Completely open the water tap.
 Insert the mains plug into the socket.
 Turn on the appliance “I/ON”.
 Unlock the lever on the trigger gun.
 Pull on the lever of the trigger gun; the
device will switch on.
Switch the appliance on for a (max. of 2
minutes) and wait until the water exits at
the hand spray gun without bubbles.
 Release the lever on the trigger gun.
Note: Release the lever of the trigger
gun; the device will switch off again.
High pressure remains in the system.
 Lock the lever on the trigger gun.
ṇ
Danger
The water jet that is emitted from the high-
pressure nozzle results in a repulsion pow-
er acting on the hand spray gun. Make sure
that you have a firm footing and are also
holding the hand spray gun and spray lance
firmly.
ṇ
Danger
High-pressure jets can be dangerous if im-
properly used. The jet may not be directed
at persons, animals, live electrical equip-
ment or at the appliance itself.
Water supply
Water supply from mains
Drawing in water from open reservoirs
Start up
Operation
19 EN