GFCI INSTRUCTIONS
– STEP 1: Plug the Ground Fault Cir-
cuit Interrupter (GFCI) into a work-
ing outlet.
– STEP 2: Press ''TEST'', then press
''RESET'' to assure proper connec-
tion to power.
Note: The actual appearance of the GFCI
may be different from this illustration.
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
separator according to EN 12729 type
BA must be used.
Water that was flowing through a system
separator is considered non-drinkable.
For connection values refer to techni-
cal specifications.
Connect the supply hose (minimum
length 7.5 m, minimum diameter 3/
4") 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.
8
Drawing in water from open
reservoirs
Screw the suction hose with filter
(order no. 4.440-238.0) to the water
connection.
Deaerate the appliance:
Unscrew the nozzle.
Switch on the appliance and let it
run until the water exiting is bubble-
free.
Switch off the appliance and fit the
nozzle again.
DANGER
Risk of injury! Never use the appliance
without the spray lance attached.
Check and ensure proper fitting of the
spray lance prior to each use. The
screw connection of the spray lance
must be finger-tight.
Risk of explosion!
Do not spray flammable liquids.
If the appliance is used in hazardous
areas (e.g. filling stations) the corre-
sponding safety regulations must be
observed.
Risk of injury! Hold the hand spray gun
and the spray pipe firmly with both
hands.
Risk of injury! The trigger and safety le-
ver may not be locked during the oper-
ation.
Risk of injury! Contact Customer Ser-
vice if the safety lever is damaged.
Risk of injury from high-pressure water
jet. Slide the safety catch on the trigger
gun forward before performing any
work with the appliance.
CAUTION
Clean engines only at places with cor-
responding oil separators (environ-
mental safety).
– 6
EN
Operation