Kärcher HDS 7/11-4 M, Manual

Page: 23 / 340

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 Turn the regulation spindle in a clockwise direction:
Increase working pressure (MAX).
 Turn the regulation spindle in an anti-clockwise di-
rection: Reduce working pressure (MIN).
 Set thermostat to max. 98 °C.
 Set the working pressure/quantity regulation at the
pump unit to maximum quantity.
 Set the working pressure and feed quantity by turn-
ing (steplessly) the pressure/quantity regulation
mechanism at the hand spray gun (+/-).
 DANGER
Risk of injury! When adjusting the pressure/quantity
regulation, make sure that the screw connection of the
spray lance does not become loose.
Note: For long term work with low pressure, set pres-
sure at the pressure/quantity regulation of the pump
unit.
– For considerate treatment of the environment use
detergent economically.
– The detergent must be suitable for the surface to
be cleaned.
 With support of the detergent dose valve set deter-
gent concentration as determined by the manufac-
turer.
Note: Recommended values at the control panel at
maximum working pressure.

Set pressure/temperature and detergent concen-
tration according to the surface to be cleaned.
Note: To prevent damage due to too much pressure, al-
ways position high pressure ray first from a greater dis-
tance towards object to be cleaned.
– 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.
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 economical tempera-
ture range.
Note: The temperature can be regulated up to 60 °C.
We recommend the following cleaning temperatures:
–
Light contaminations
30-50 °C
– Contaminations containing protein, i.e. in the food
processing industry
max. 60 °C
– Vehicle cleaning, machine cleaning
60-90 °C
– De-preserve, contaminations containing strong fat
contents
100-110 °C
– De-frosting of surcharge substances, partially fa-
cade cleaning
up to 140 °C
 DANGER
Scalding danger!
 Set temperature regulator to desired temperature.
 DANGER
Scalding danger! The work pressure must not exceed
3.2 MPa (32 bar) when operating with temperatures
above 98 °C.
Therefore the following measures must definitely be
performed:

 In steam operation (> 100°C), use the steam
nozzle available as an accessory (for part no.,
see technical data).
 Open up the pressure/ quantity regulator on the
hand spray gun completely, dir until stop.
 Set the working pressure/quantity regulation at the
pump unit to the minimum quantity.
 Set temperature regulator to min. 100 °C.
 Secure the trigger gun. To do so, push the safety
catch towards the front.
 Set dosing value for detergent to "0".
 Set the appliance switch to "1" (operation with cold
water).
 Open the hand spray gun and rinse the appliance
for at least 1 minute.
 DANGER
Danger of scalding from hot water! After the operation
with hot water or steam, the device must be operated
with opened gun with cold water for at least two min-
utes.
 Shut off water supply.
 Open the hand spray gun.

Switch on the pump with the power switch and al-
low to run for about 5-10 seconds.
 Close the hand spray gun.

Set the appliance switch to "0/OFF“.
 Pull main plug out of socket with dry hands only.
 Remove water connection.

Activate hand spray gun until device is pressure
less.
 Secure the trigger gun. To do so, push the safety
catch towards the front.

Lock in the steel pipe into the holder of the appli-
ance hood.
 Roll up high pressure hose and electrical conduit
and hang them into the respective holders.
Note: Do not twist high pressure hose and electrical
conduit.
Set working pressure and flow rate
Pressure/quantity regulation of the pump unit
Pressure/ quantity regulation at the hand spray gun
Operation with detergent
Cleaning
Recommended cleaning method
Operating with cold water
Eco operation
Operating with hot water/steam
Operating with hot water
Operating with steam
Interrupting operation
After operation with detergent
Turn off the appliance
Storing the Appliance
23 EN