Symbols On The Device; Intended Use; Safety Instructions; Safety Devices - Kärcher HDS 9/20-4 M Classic Manual

Control panel
Illustration B
0 = off
Power switch
1
Operating mode: Cold water operation
2
Operating mode: Hot water operation (e = Eco lev-
3
el, hot water max. 60°C)
Fuel indicator light
4
QR code for information
5

Symbols on the device

Do not aim the high-pressure jet may at
persons, animals, live electrical equip-
ment or the device itself.
Protect the device against frost.
Danger of injury from electrical voltage.
Only qualified electricians or authorised
and qualified technical specialists are
permitted to work on the electrical sys-
tems.
According to applicable regulations, the
device must never be used with the drink-
ing water network without a system sep-
arator. Ensure that the connection to your
house water system, with which the high-
pressure cleaner is operated, is
equipped with a system separator ac-
cording to EN 12729 type BA. Water that
has flowed through a system separator is
classified as undrinkable.
Always connect the system separator to
the water supply and never directly to the
device.
Health risk from poisonous exhaust gases.
Never inhale the exhaust gases.
Risk of burns from hot surfaces.
QR code for information

Intended use

Only use the device for cleaning, e.g. machines, vehi-
cles, buildings, tools, façades, terraces and garden
equipment.
DANGER
Use at petrol stations or other hazard zones
Risk of injury
Adhere to the respective safety regulations.
Note
Do not allow waste water containing mineral oil to pen-
etrate soil, waterways or the sewage system. Only wash
the motor or the undercarriage in suitable places with an
oil separator.
Water supply limit values
ATTENTION
Dirty water
Premature wear and tear or deposits in the device
Supply the device using only clean water, or recycled
water that does not exceed the specified limit values.
The following limit values apply to the water supply:
● pH value: 6.5-9.5
● Electrical conductivity: Conductivity of fresh water
+ 1200 µS/cm, maximum conductivity 2000 µS/cm
● Settleable particles (sample volume 1 l, settling time
30 minutes): < 0.5 mg/l
● Filterable particles: < 50 mg/l, no abrasive sub-
stances
● Hydrocarbons: < 20 mg/l
● Chloride: < 300 mg/l
● Sulphate: < 240 mg/l
● Calcium: < 200 mg/l
● Total hardness: < 28 °dH, < 50° TH, < 500 ppm
(mg CaCO /l)
3
● Iron: < 0.5 mg/l
● Manganese: < 0.05 mg/l
● Copper: < 2 mg/l
● Active chloride: < 0.3 mg/l
● Free of unpleasant odours

Safety instructions

The following safety instructions apply to the device:
● Observe the respectively applicable national regula-
tions for liquid jet cleaners.
● Observe the respectively applicable national acci-
dent prevention regulations. Liquid jet cleaners must
be tested regularly and the results of the test record-
ed in writing.
● Note that the heating system in the device is classi-
fied as a furnace. Furnaces must be inspected reg-
ularly according to the applicable national
regulations.
● No modifications may be made to the device or ac-
cessories.
● To avoid hazards from excessive temperatures, you
must set the pressure/quantity regulator of the pump
unit to MAX at work temperatures above 60 °C.

Safety devices

Safety devices protect the user and may not be disabled
or functionally circumvented.
● The safety valve opens if the pressure switch is
faulty.
● The safety valve is adjusted and sealed at the facto-
ry. The adjustment is performed only by customer
service.
Water shortage safeguard
The water shortage safeguard prevents the burner from
switching on when there is a lack of water.
Exhaust gas thermostat
The exhaust gas thermostat switches the device off
when the emission temperature is too high.
English
Safety valve
13