Water Connection; Operation - Kärcher HD 9/20-4 S ST Classic Bedienungsanleitung

2. Plug the mains plug into the socket.

Water connection

Connection to a water line
WARNING
Health risk when operating without system separa-
tor!
When operating without an upstream system separator,
there is a health risk due to backflow of contaminated
water into the drinking water network.
Observe the regulations of your water supply company.
Do not operate the device on the drinking water network
without a system separator.
Use a system separator from KÄRCHER or a system
separator as per EN 12729 Type BA. Water that has
flowed through a system separator is classified as un-
drinkable.
Always connect the system separator to the water sup-
ply and never directly to the water connection on the de-
vice.
1. Check that the pressure, temperature and quantity
of the inlet water as well as the dimensions of the
water inlet hose meet the requirements, see chapter
Technical data.
2. Connect the system separator and the water con-
nection of the device with a water supply hose.
3. Open the water inlet.
Sucking water from a container
1. Screw the suction hose with filter onto the water
connection (for the order number see chapter Tech-
nical data).
2. Vent the device (see chapter Vent the device).
Vent the device
1. Unscrew the high-pressure nozzle from the spray
lance.
2. Allow the device to run until the escaping water is
free of air bubbles.
3. In the case of venting problems, allow the device to
run for 10 seconds and then switch it off. Repeat the
procedure several times.
4. Switch off the device.
5. Screw the high-pressure nozzle onto the spray
lance.

Operation

DANGER
Danger of death when touching damaged, live
parts!
When using damaged mains plugs, mains cables and
extension cables, there is a danger of death due to elec-
tric shock!
Check the mains plug, mains cable and extension cable
for damage before each use and only use them if they
are in perfect condition.
Have damaged parts replaced immediately by a person
with specialist knowledge.
WARNING
Risk of injury from high-pressure jet!
A high-pressure jet can escape from a defective device
and accessories, or in the event of incorrect installation,
and cause serious injuries.
Check the device and accessories for damage and
faults in the installation before each use.
Have any damage repaired immediately and only use
the device and accessories if they are in perfect condi-
tion and correctly installed.
WARNING
Risk of injury from high-pressure jet!
A high-pressure jet can escape from the pressurised
device and accessories and cause serious injuries.
Hold the high-pressure gun and spray lance tight with
both hands.
Do not fasten the trigger in the actuated position.
Depressurise the device and disconnect the mains plug
from the mains socket before releasing, dismantling or
fitting the high-pressure hose or the high-pressure gun
or carrying out work on the device or accessories.
Push the safety latch on the high-pressure gun forwards
before releasing, dismantling or fitting the spray lance,
jet nozzle or accessories (e.g. T-Racer, cup foam
lance).
High-pressure operation
Note
The device is equipped with a pressure switch. The mo-
tor only starts when the trigger is pulled.
1. Before each operation, check the device for damage
and leaks, see chapter Each time before use.
2. Set the trigger to the "I/ON" position.
3. Push the safety latch backwards.
The high-pressure gun is unlocked.
4. Pull the trigger.
5. Adjust (infinitely adjustable) the working pressure
and water quantity by turning the pressure and
quantity regulator (+/-).
Operation with detergent
WARNING
Health risk when incorrectly handling detergents!
Incorrect handling of detergents can endanger your
health and the health of others.
Observe the safety and application instructions of the
detergent manufacturers and act accordingly.
ATTENTION
Risk of damage when incorrectly handling deter-
gents!
Incorrect handling of detergents can damage the de-
vice, accessories and treated objects.
Use only detergents approved by KÄRCHER.
Observe the safety and application instructions of the
detergent manufacturers and act accordingly.
Follow the instructions on dosing and contact time.
Use detergents sparingly to help conserve the environ-
ment.
Note
KÄRCHER detergents ensure fault-free operation. Ask
us for a consultation, request our catalogue or our de-
tergent information sheets.
Note
The application of detergents with the device is possible
with optional accessories, e.g. dosing unit, cleaning
agent injector, cup foam lance.
Please educate yourself or ask for advice.
Operation with cup foam lance
1. Unscrew the container.
Illustration F
Container
1
Foam nozzle
2
English 15