Stihl FS 240 R User Manual

7.3 Balancing the Trimmer
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The cutting attachment should rest lightly on the
ground.
► Shut off the engine.
2
1
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► Connect the carrying ring (2) to the carabi‐
ner (1).
► Wait for trimmer to stop swinging.
► Check position of cutting attachment. If it
needs adjustment:
2
3
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► Loosen the screw (3).
► Move carrying ring (2) up or down the drive
tube until correct balanced position is reached.
► Tighten down the screw (3) firmly.
8 Mixing Fuel and Refueling
the Brushcutter
8.1 Mixing fuel
The fuel required for this trimmer is a mixture of
gasoline and two-stroke engine oil, in a mixing
ratio of 1:50.
STIHL recommends you use STIHL MotoMix.
If you mix the fuel yourself, use only STIHL two-
stroke engine oil or another high-performance
engine oil in accordance with JASO FB, JASO
FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-
EGD.
STIHL specifies STIHL HP Ultra two-stroke
engine oil or an equivalent high-performance
engine oil in order to maintain emission limits
over the machine’s service life.
► Make sure that the octane number of the gas‐
oline is at least 90 RON and the ethanol con‐
tent is not more than 10% (for Brazil: 27%).
► Make sure the two-stroke engine oil you are
using meets requirements.
► Depending on the desired amount of fuel,
determine the correct amounts of two-stroke
engine oil and gasoline in a mixing ratio of
1:50. Examples for fuel mixes:
–
20 ml Two-stroke engine oil, 1 l gasoline
–
60 ml Two-stroke engine oil, 3 l gasoline
–
100 ml Two-stroke engine oil, 5 l gasoline
► Pour two-stroke engine oil into a clean
approved fuel canister first and then add gaso‐
line.
► Stir the fuel before topping up.
8.2 Fueling the brushcutter
► Shut off the engine.
► Place your brushcutter on a level surface so
that the fuel tank cap faces up.
► Use a damp cloth to clean the fuel tank cap
and the area around it.
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► Turn the tank cap counterclockwise until it can
be removed.
► Remove the fuel tank cap.
English 8 Mixing Fuel and Refueling the Brushcutter
14 0458-891-0101-A

Stihl FS 240 R Specifications

General

Type	String trimmer
Cordless	Yes
Head type	Nylon line
Handle type	D-loop handle
Engine power	2.3 hp
Product color	Black, Metallic, Orange
Rotational speed	8500 RPM
Number of strokes	2
Sound power level	110 dB
Fuel tank capacity	0.75 L
Engine displacement	37.7 cm³
Sound pressure level	99 dB
Cutting diameter (max)	420 mm
Power source	Gasoline

Weight and Dimensions

Length	1865 mm
Weight	6600 g