Operation; Operating Modes; Turning On The Appliance - Kärcher HDS 7/9-4 M Manual Del Usuario

Caution
The maximum tolerable mains impedance
at the electrical contact point (see Techni-
cal Data) must not be exceeded.

Operation

Danger
Risk of explosion!
Do not spray flammable liquids.
Danger
Risk of injury! Never use the appliance
without the spray lance attached. Check
and ensure proper fitting of the spray lance
prior to each use. The screw connection of
the spray lance must be fingertight.
Caution
Never operate device with empty fuel tank
The fuel pump will otherwise be destroyed.
Safety instructions
Warning
Long hours of using the appliance can
cause circulation problems in the hands on
account of vibrations.
It is not possible to specify a generally valid
operation time, since this depends on sev-
eral factors:
Proneness to blood circulation deficien-
–
cies (cold, numb fingers).
Low ambient temperature. Wear warm
–
gloves to protect hands.
A firm grip impedes blood circulation.
–
Continuous operation is worse than an
–
operation interrupted by pauses.
In case of regular, long-term operation of
the device and in case of repeated occur-
rence of the symptoms (e.g. cold, numb fin-
gers) please consult a physician.
Replace the nozzle.
Danger
Switch the appliance off prior to replacing
nozzel and activate hand spray gun until
device is pressureless.
28

Operating modes

0/OFF = Off
1 Operating with cold water
2 Eco operation (hot water max. 60 °C)
3 Operating with hot water/steam

Turning on the Appliance

 Set appliance switch to desired operat-
ing mode.
Indicator lamp for operational readiness
lights up.
The device starts briefly and turns off, as
soon as the working pressure is reached.
Note: If the indicator lamps for pump, rota-
tion direction, burner malfunction or engine
are on during operation, turn off the appli-
ance immediately and repair malfunction,
refer to "Help with malfunctions".
 Release the trigger gun.
When activating the hand spray gun the de-
vice switches back on.
Note:If no water comes out of the high
pressure nozzle, vent pump. Refer to "Help
with malfunctions - appliance is not building
up pressure".
Adjust cleaning temperature.
 Set temperature regulator to desired
temperature.
30 °C to 95 °C
Clean with hot water.
–
100 °C to 150 °C
Clean using steam.
–
 Replace the high-pressure nozzle
(stainless steel) with steam nozzle
(brass), (refer to "Using steam").
– 6
EN