Join the spray lance with the trigger
gun and tighten until hand-tight
(EASY!Lock).
Join the high-pressure hose with
trigger gun and high-pressure con-
nection of the appliance and tighten
until hand-tight (EASY!Lock).
Start up
WARNING
Risk of injury! Appliance, accessories,
supply lines and connections must be
in fault-free condition. If they are not in
a perfect state then the appliance must
not be used.
Electrical connection
DANGER
Danger of injury by electric shock.
– It is imperative to connect the appli-
ance to the electric mains by means
of a plug. It is forbidden to perma-
nently connect the appliance to the
power supply. The plug serves for
the disconnection from the mains.
– Use an extension cable with protec-
tive earth conductor (protection
class 1) and an adequate cross
section (see "Technical data") und
fully uncoil it from the cable drum.
For connection values, see type plate/
technical data.
Unwind the mains cable and place it
on the floor.
Insert the mains plug into a socket.
Water connection
Connection to the water supply
WARNING
Observe regulations of water supplier.
According to applicable regu-
lations, the appliance must
never be used on the drinking
water net without a system separator.
A suitable system separator by
KÄRCHER or alternatively a system
8
separator according to EN 12729 type
BA must be used.
Water that was flowing through a sys-
tem separator is considered non-drink-
able.
CAUTION
Always connect the system separator
to the water supply, never directly to
the appliance!
For connection values refer to techni-
cal specifications.
Connect the supply hose (min.
length 7.5 m, minimum diameter 1/
2") to the water connection point of
the machine and at the water sup-
ply point (for e.g. a tap).
Note:
The supply hose is not included.
Open the water supply.
Drawing in water from open
reservoirs
Screw the suction hose with filter
(optional accessory) to the water
connection.
Appliance ventilation:
Unscrew the nozzle from the spray
lance.
Switch on the appliance and let it
run until the water exiting is bubble-
free.
Let the appliance run for 10 sec-
onds – then switch off the appliance
switch. Repeat the procedure sev-
eral times.
Switch off the appliance and fit the
nozzle again.
ProHD 400 Ed only: GFCI
INSTRUCTIONS
STEP 1: Plug the Ground Fault Cir-
cuit Interrupter (GFCI) into a work-
ing outlet.
– 6
EN