Water Connection; Cleaning The Filter - Kärcher HD 7.9/72 Ec Manuel D'utilisation

point, please contact your local power sup-
ply company.
DANGER
– Check whether the voltage data on the
type plate corresponds with the voltage
of the power source.
– Unsuitable electrical extension cables
can be dangerous. Only use approved
and appropriately marked electrical ex-
tension cables with a sufficient line
cross section when outdoors:
1 - 10 m: 10 mm
10 - 30 m: 16mm
60 Hz model
With this appliance model, the matching
mains plug must be installed onto the
mains connecting line by an electrician.

Water connection

WARNING
Observe regulations of water supplier.
According to applicable regula-
tions, the appliance must never be
used on the drinking water net
without a system separator. A suit-
able system separator must be used.
Water that was flowing through a system
separator is considered non-drinkable.
CAUTION
Always connect the system separator to the
water supply, never directly to the appliance!
For connection values refer to technical
specifications.
 Connect the supply hose (minimum
length 7.5 m, minimum diameter 1") to
the water connection point of the appli-
ance (such as the tap).
The supply hose is not included.
 Open the water supply.
Quality requirements for water:
Parameter
pH value
electrical conductivity
Hydrocarbons
8
2
2
Value
6,5...9,5
max. 2000
µS/cm
< 0,01 mg/l
Chloride
Calcium
Total hardness
Iron
Manganese
Copper
Sulphate
Active chloride
free of bad odours

Cleaning the filter

 Shut off water supply.
 Unscrew the filter casing.
 Pull out and clean the filter.
 Vent appliance.
Note:
The device is supplied with an 80 μm filter.
A 50 μm filter (6.414-063.0) should be used
when the rotor nozzle is used.
Suck in water from vessel
A prepressure pump must be connected in
front of the appliance to suction water.
Fill the suction hose with water.
Advance pressure pump: 2.637-017.0
DANGER
Never suck in water from a drinking water
container.
DANGER
Never draw in fluids containing solvents or
undiluted acids and solvents! This includes
petrol, paint thinner and heating oil. The
spray mist is highly inflammable, explosive
and poisonous. Do not use acetone, undi-
luted acids and solvents, as they corrode
the materials used on the appliance.
 Remove air from appliance before oper-
ation.
Deaerating the appliance
 Open the water supply.
 Unscrew the nozzle.
 Press the lever on the hand spray gun.
 Switch on the appliance and let it run
until the water exiting from the spray
pipe is bubble-free.
 Switch off the appliance and fit the noz-
zle again.
– 6
EN
< 250 mg/l
< 200 mg/l
< 28 °dH
< 0,2 mg/l
< 0,05 mg/l
< 0,02 mg/l
< 240 mg/l
< 0,01 mg/l