Karcher K 2.21 Operator's Manual - Save These Instructions
English
5
BEFORE SERVICING, CLEANING
OR REMOVING ANY PARTS,
SHUT OFF POWER AND RELIEVE
PRESSURE.
IF CONNECTION IS MADE TO A
POTABLE WATER SYSTEM, THE
SYSTEM SHALL BE PROTECTED
AGAINST BACKFLOW.
SAVE THESE INSTRUCTIONS
In a double-insulated product, two sys-
tems of insulation are provided instead
of grounding. No grounding means is
provided on a double-insulated product,
nor should a means for grounding be
added to the product. Servicing a dou-
ble-insulated product requires extreme
care and knowledge of the system, and
should be done only by qualified service
personnel. Replacement parts for a
double-insulated product must be iden-
tical to the parts they replace. A double-
insulated product is marked with the
words “DOUBLE INSULATION” or
“DOUBLE INSULATED”. The symbol
“ ” may also be marked on the product.
This product is provided with a ground-
fault circuit interrupter (GFCI) built into
the plug of the power-supply cord. This
device provides additional protection
from the risk of electric shock.
Should replacement of the plug or cord
become necessary, use only identical
replacement parts that include GFCI
protection.
Contact Kärcher Customer Support.
CAUTION
When connecting the water inlet to the
water supply mains, local regulations of
your water company must be observed.
In some areas the unit must not be con-
nected directly to the public drinking wa-
ter supply. This is to ensure that there is
no feedback of chemicals into the water
supply. Direct connection via a receiver
tank or backflow preventer, for example,
is permitted.
Dirt in the feed water will damage the
unit. To avoid this risk, we recommend
fitting a water filter.
Garden hose must be at least 5/8
inch in diameter.
Flow rate of water supply must not
fall below 2 GPM (gallons per
minute).
Flow rate can be determined by run-
ning the water for one minute into an
empty 5-gallon container.
The water supply temperature must
not exceed 104°F/40°C.
Never use the pressure washer to
draw in water contaminated with sol-
vents, e.g. paint thinners, gasoline,
oil, etc.
Always prevent debris from being
drawn into the unit by using a clean
water source.
SERVICING OF A DOUBLE-
INSULATED PRODUCT
GROUND FAULT CIRCUIT
INTERRUPTER PROTECTION
WATER SUPPLY
(Cold Water Only)