Colour Coding; Symbols On The Machine; Proper Use; Safety Instructions - Kärcher HDS 7/11-4 M Bedienungsanleitung

9 Engine indicator lamp
10 Indicator lamp burner failure
11 Indicator lamp service
12 Indicator lamp system care
13 Detergent indicator light 2 (HDS 12/18, HDS 13/20
only)

Colour coding

– The operating elements for the cleaning process
are yellow.
– The controls for the maintenance and service are
light gray.

Symbols on the machine

High-pressure jets can be dangerous if im-
properly used. The jet may not be directed
at persons, animals, live electrical equip-
ment or at the appliance itself.
Risk of electric shock!
Only electricians or authorised techni-
cians are permitted to work on parts of
the plant.
Risk of burns on account of hot surfaces!
Risk of poisoning! Do not inhale exhaust
fumes.
Risk of injury! Do not reach in with your
hands.
Cleaning of: Machines, Vehicles, Structures, Tools, Fa-
cades, Terraces, Gardening tools, etc.
DANGER
Risk of injury! Follow the respective safety regulations
when operating at gas stations or other dangerous are-
as.
Please do not let mineral oil contaminated waste water
reach soil, water or the sewage system. Perform en-
gine cleaning and bottom cleaning therefore only on
specified places with an oil trap.
Quality requirements for water:
ATTENTION
Only clean water may be used as high pressure medi-
um. Impurities will lead to increased wear and tear or
formation of deposits in the appliance and accessories.
If recycled water is used, the following limit values must
not be exceeded.
20

Proper use

pH value
electrical conductivity *
settleable solids **
total suspended solids ***
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

– Please follow the national rules and regulations for
fluid spray jets of the respective 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 heat-
ing systems must also be followed.
– As per the applicable national guidelines, 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 appliance
available when enquiring about the documentation.
– We would like to point out that the appliance must
be repeatedly checked by a skilled person as pre-
scribed by the applicable national regulations.
Please contact your KÄRCHER partner.
– The appliance/accessories must not be modified.
Safety devices serve for the protection of the user and
must not be put out of operation or bypassed with re-
spect to their function.
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 pres-
sure switch at the overflow valve shuts down the
pump.
– 2
EN
6,5...9,5
Conductivity fresh
water +1200 µS/
cm
< 0,5 mg/l
< 50 mg/l
< 20 mg/l
< 300 mg/l
< 240 mg/l
< 200 mg/l
< 28 °dH
< 50 °TH
< 500 ppm (mg
CaCO
< 0,5 mg/l
< 0,05 mg/l
< 2 mg/l
< 0,3 mg/l

Safety Devices

/l)
3