Set Working Pressure And Flow Rate; Operation With Detergent; Operating With Cold Water; Eco Operation - Kärcher HDS 7/9-4 M Manual Del Usuario

Set working pressure and flow rate

Pressure/quantity regulation of the
pump unit
 Turn the regulation spindle in a clock-
wise direction: Increase working pres-
sure (MAX).
 Turn the regulation spindle in an anti-
clockwise direction: Reduce working
pressure (MIN).
Pressure/ quantity regulation at the
hand spray gun
 Set thermostat to max. 95 °C.
 Set the operating pressure on the pump
unit to the maximum value.
 Set the working pressure and feed
quantity by turning (steplessly) the
pressure/quantity regulation mecha-
nism at the hand spray gun (+/-).
Danger
When adjusting the pressure/quantity regu-
lation, make sure that the screw connection
of the spray lance does not become loose.
Note: For long term work with low pres-
sure, set pressure at the pump unit.

Operation with detergent

For considerate treatment of the envi-
–
ronment use detergent economically.
The detergent must be suitable for the
–
surface to be cleaned.
 With support of the detergent dose
valve set detergent concentration as
determined by the manufacturer.
Note: Recommended values at the control
panel at maximum working pressure.
Cleaning
 set pressure/temperature and deter-
gent concentration according to the sur-
face to be cleaned.
Note: To prevent damage due to too much
pressure, always position high pressure ray
first from a greater distance towards object
to be cleaned.
Recommended cleaning method
Loosen the dirt:
–
 Spray detergent economically and let it
work for 1...5 minutes but do not let it
dry up.
Remove the dirt:
–
 Spray off loosened dirt with the high-
pressure jet.

Operating with cold water

Removal of light contaminations and clear
rinse, i.e.: Gardening tools, terrace, tools, etc.
 Set operating pressure according to
need.
The appliance works in the most economi-
cal temperature range.
Note: The temperature can be regulated
up to 60 °C.
– 7
EN

Eco operation

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