Safety Instructions; Safety Devices; Overflow Valve With Two Pressure Switches - Kärcher HDS 3.0/20 C Ea Manual De Instrucciones

Please do not let mineral oil contaminated
waste water reach soil, water or the sew-
age system. Perform engine cleaning and
bottom cleaning therefore only on speci-
fied places with an oil trap.
Quality requirements for water:
ATTENTION
Only clean water may be used as high
pressure medium. Impurities will lead to in-
creased wear and tear or formation of de-
posits in the appliance and accessories.
If recycled water is used, the following limit
values must not be exceeded.
pH value
electrical conductivity *
settleable solids **
total suspended solids *** < 50 mg/l
Hydrocarbons
Chloride
Sulphate
Calcium
Total hardness
Iron
Manganese
Copper
Active chloride
free of bad odours
* Maximum total 2000 µS/cm
** Test volume 1 l, settling time 30 min
*** no abrasive substances

Safety instructions

PROPOSITION 65
WARNING
The burner exhaust from this product con-
tains chemicals known to the State of Cal-
ifornia to cause cancer, birth defects or
other reproductive harm.
10
6,5...9,5
Conductivity
fresh water
+1200 µS/cm
< 0,5 mg/l
< 20 mg/l
< 300 mg/l
< 240 mg/l
< 200 mg/l
< 28 °dH
< 50 °TH
< 500 ppm (mg
CaCO /l)
3
< 0,5 mg/l
< 0,05 mg/l
< 2 mg/l
< 0,3 mg/l
EN
– Please follow the national rules and
regulations for fluid spray jets of the re-
spective country.
– Please follow the national rules and
regulations for accident prevention of
the respective country. Fluid spray jets
must be tested regularly and the results
of these tests must be documented in
writing.
– The heating appliance of the machine is
an ignition plant. All national laws and
regulations about heating systems must
also be followed.
– As per the applicable national guide-
lines, the first time this high-pressure
cleaner must be taken into operation by
a skilled person. KÄRCHER has al-
ready performed this initial start-up for
you and has documented it accordingly.
The documentation can be requested at
your KÄRCHER partner. Please have
the part and plant number of the appli-
ance available when enquiring about
the documentation.
– We would like to point out that the appli-
ance must be repeatedly checked by a
skilled person as prescribed by the ap-
plicable national regulations. Please
contact your KÄRCHER partner.
– The appliance/accessories must not be
modified.

Safety Devices

Safety devices serve for the protection of
the user and must not be put out of opera-
tion or bypassed with respect to their func-
tion.
Overflow valve with two pressure
switches
– While reducing the water supply at the
pump head or with the Servopress -
regulation the overflow valve opens and
part of the water flows back to the pump
suck side.
– If the hand-spray gun is closed, so that
the whole water flows back to the pump
suck side, the pressure switch at the
overflow valve shuts down the pump.
– 3