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11 Operating the pressure washer
11.6.3 Working with detergent
► Turn rotary handle in direction + up to the stop.
► Turn fan jet nozzle (2) in direction - up to the stop.
► Set the desired dosage.
► Turn dosing handle (3) to the right (up to 5 %).
The addition of detergents is increased.
► Turn dosing handle (3) to the left (up to 0 %).
The addition of detergents is reduced.
► If the detergent concentration needs to be adjusted
accurately: Measure and calculate detergent
concentration.
► Soak extremely dirty surfaces with water before cleaning
them.
► Press the spray gun lever and spray the detergent onto
the surface to be cleaned.
► Apply the detergent starting at the bottom and working up
and do not allow to dry.
► Turn the dosing handle to the left as far as it will go.
Detergent is no longer sucked in.
► Clean surface.
11.6.4 Measuring and calculating the detergent concentration
For a few detergents, the concentration must be precisely
set. In this case, the water flow rate and the consumption of
detergent must be measured.
Calculating the predilution of the detergent in %
If the predilution is not indicated as a % value on the
packaging of the detergent used, it can be determined as
follows:
Ratio value
–1:1=50%
– 1:2 = 33.3 %
–1:3=25%
– 1:5 = 16.6 %
– 1:10=9%
Example: Calculation ratio value 1:2.
–A=1
–B=2
21
0000-GXX-9843-A0
A
x 100 = V
x 100 = 33,3%
( A + B )
1
( 1 + 2 )
0000-GXX-9861-A0