Safety devices
Safety devices protect the user and may not be disabled
or functionally circumvented.
The overflow valve, pressure switch an safety valve are
set and sealed by the manufacturer. Adjustments are
performed only by customer service.
Overflow valve with pressure switch
When the water quantity is reduced via the pressure/
quantity control on the trigger gun, the overflow valve
opens and part of the water flows back to the suction
side of the pump.
When the trigger on the high-pressure gun is release,
the pressure switch switches off the high-pressure
pump and the high-pressure jet stops.
The pump switches on again when the trigger is pulled.
Safety valve
The safety valve opens when the permissible operating
pressure is exceeded and the water flows back to the
suction side of the pump.
Control elements
See graphics page
Protector
1
Nozzle
2
Pressure and quantity regulation*
3
EASY!Lock spray lance
4
EASY!Force high-pressure gun
5
Safety latch
6
Trigger
7
Unlocking lever
8
EASY!Lock high-pressure hose
9
Push handle
10
Spray lance holder
11
Transport retainer for surface cleaner*, rotary noz-
12
zle*
Push handle star grip
13
EASY!Lock high-pressure connection
14
Union nut
15
Hose spout
16
Sieve
17
Water connection
18
Power switch
19
Cable clip, hose switch
20
* not in the scope of delivery for all unit models
Colour coding
● Control elements for the cleaning process are yel-
low.
● Control elements for maintenance and servicing are
light grey.
Unpacking
1. Check the contents of the package when unpacking.
2. Notify the dealer immediately in the case of shipping
damage.
12
Installing accessories
Note
The EASY!Lock system connects components quickly
and safely via a single turn of the quick-release thread.
1. Plug the high-pressure nozzle onto the spray lance.
2. Fit the union nut and hand-tighten (EASY!Lock).
3. Connect the spray lance to the high-pressure gun
and hand-tighten (EASY!Lock).
Figure A
4. Fit the push handle.
Figure B
Connect the high-pressure hose
1. Connect the high-pressure hose to the high-pres-
sure gun and high-pressure connection of the de-
vice and tighten hand-tight (EASY!Lock).
Electrical connection
DANGER
Risk of injury from electric shock
Use a plug to connect the device to the mains grid. Per-
manent connection to the mains grid is prohibited. The
plug is used for disconnection from the mains.
See the type plate or technical data for the connection
values.
1. Unwind the mains cable and place on the ground.
2. Plug the mains plug into the socket.
Connection to a water line
WARNING
Health risk from return flow of contaminated water
into the drinking water network.
Observe the regulations of your water supply company.
According to applicable regulations, the device must
never be used with 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 sep-
arator is classified as undrinkable. Always connect the
system separator to the water supply and never directly
to the water connection on the device.
1. Check the feed pressure, input temperature and in-
put amount of the water supply. See the "Technical
data" section for the requirements.
2. Connect the system separator and water connection
of the device with a hose (minimum length 7.5 m,
minimum diameter 1").
The supply hose is not included in the scope of de-
livery.
3. Open the water inlet.
Suck water from the container
1. Screw the suction hose (order number 4.440-207.0)
and filter (order number 4.730-012.0) onto the water
connection.
2. Vent the device.
Vent the device
1. Unscrew the 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 nozzle back in place.
English
Initial startup
Water connection