RE 143, RE 143 PLUS, RE 163, RE 163 PLUS
English
53
N Hold the detergent tank by both 
handles and fold it out past the stop 
and out of the housing
N Unscrew the cap with intake hose 
from the detergent tank
The intake hose can be pushed into the 
high-pressure cleaner housing for 
storage.
Mounting
N Position the detergent tank in the 
mounts on the base of the housing
N Press against the detergent tank 
until it engages in the housing
Using detergent from a separate 
container
N Fold out the detergent tank
N Unscrew the cap with intake hose 
from the detergent tank
N Screw the cap with intake hose onto 
a separate detergent container
The cap has a standard thread and fits 
all standard detergent containers.
N Slide the intake hose as far as 
possible into the detergent 
container
Precisely calculating/setting the 
detergent concentration
For a few detergents, the concentration 
must be very precisely set. In this case, 
measure the water flow and detergent 
consumption.
N Set the nozzle sleeve to low-
pressure operation – as described 
above
N Set the detergent metering knob to 
"0 % (min)"
N Hold the spray gun in a suitable 
empty receptacle (> 20 l) and 
actuate for exactly 1 minute
N Measure the quantity of water "Q" in 
the container
N Fill 2 liters of detergent diluted as 
directed into a suitable container 
(with a scale of 0.1 l) – STIHL 
recommends the use of genuine 
STIHL detergents
N Hold the intake hose in the 
container
N Set the detergent metering knob to 
the desired concentration: 0 % 
(min) to 5 % (max)
N Hold the spray gun in a suitable 
empty receptacle (> 20 l) and 
actuate for exactly 1 minute
N Read the detergent consumption 
"QR" on the scale
Calculating the actual detergent 
concentration:
– 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:
QR
x V = concentration
Q