After Each Operation - Kärcher HDS 645-4 M Basic Betriebsanleitung

Turn the regulation spindle in an anti-
clockwise direction: Reduce working
pressure (MIN).
Note
For long term work with low pressure, set
pressure at device.
Operation with detergent
– For considerate treatment of the envi-
ronment use detergent economically.
– The detergent must be suitable for the
surface to be cleaned.
Figure 2 - Pos. 8
With support of the detergent dose
valve set detergent concentration as
determined by the manufacturer.
Note
Recommended value at maximum working
pressure.
Cleaning
set pressure/temperature and detergent
concentration according to the surface
to be cleaned.
Note
To prevent damage due to too much pres-
sure, always position high pressure ray first
from a greater distance towards object to
be cleaned.
Working with the high pressure nozzle
The spray angle is essential for the effec-
tiveness of the high pressure ray. Normally
work is performed with a 25° flat ray nozzle
(included).
Recommended nozzles are deliverable as
accessories
– For strong contaminations
0° full ray - nozzle
– For sensitive surfaces and light contam-
inations
40° flat ray - nozzle
– For thick layered, persistent contamina-
tions
Dirt grinder
– Nozzle with adjustable spray angle, for
adaption to different cleaning tasks
Angle-Vario-Nozzle
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 ray.
Operating with cold water
Removal of light contaminations and clear
rinse, i.e.: Gardening tools, terrace, tools,
etc.
Set operating pressure according to
need.
Set temperature regulator to "0".
Operating with hot water
Danger
Scalding danger!
Set temperature regulator to desired
temperature.
We recommend the following cleaning tem-
peratures:
– Light contaminations
30 -50 °C
– Contaminations containing protein, i.e.
in the food processing industry
max. 60 °C
– Vehicle cleaning, machine cleaning
60 -80 °C

After each operation

Danger
Danger of scalding by hot water. After oper-
ation with hot water, the device must be op-
23
English