Steam Cleaning Mode - Stihl RE 661 Gebrauchsanleitung

Hold the spray gun in a suitable
N
empty receptacle (> 20 l) and
actuate for exactly 1 minute
Read the detergent consumption
N
"QR" on the scale
Calculating the actual detergent
concentration:
QR
x V = concentration
Q
– QR = amount of consumed
detergent (in l/min)
– Q = Water without detergent
(in l/min)
– V = Predilution of detergent (in %)
If the actual concentration deviates from
the desired concentration, reset knob
and repeat measurement if necessary.
Calculating the predilution of the
detergent in %
If the predilution is not indicated as a
percentage, it can be calculated using
the following table:
Ratio
1:1 = 50 %
1:2 = 33.3 %
1:3 = 25 %
1:5 = 16.6 %
1:10 = 9 %
Example:
Calculation ratio of 1:2
– A = 1
– B = 2
RE 661, RE 661 PLUS, RE 961 PLUS
A
x 100 = value in %
(A + B)
1
x 100 = 33.3 %
(1 + 2)

Steam cleaning mode

Open the side cover – see "Open
N
shroud"
Turn the knob on the pressure and
N
flow control counter-clockwise as
far as possible
Turn the master switch to uv
N
Set the knob to the desired
N
temperature (above 100 °C or
212 °F respectively)
Use the steam nozzle for professional
steam cleaning and special applications
– see "Special accessories".
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