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Fault
Cause
Remedy
The engine does not
start.
There is not enough
fuel in the fuel tank.
► Prepare fuel mix and refuel the trimmer.
The engine has floo‐
ded.
► Vent the combustion chamber.
The carburetor is too
hot.
► Allow trimmer to cool down.
► Depress the manual fuel pump at least 10 times
before starting the engine.
The carburetor has
iced up.
► Allow trimmer to warm up to +10°C.
The engine idles
erratically.
The carburetor has
iced up.
► Allow trimmer to warm up to +10°C.
The engine stops
while idling.
The carburetor has
iced up.
► Allow trimmer to warm up to +10°C.
The engine does not
reach maximum
speed.
Trimmer is not cor‐
rectly tuned to ambi‐
ent conditions.
► Calibrate the trimmer.
18.2
Replacing air filter
The air filter cannot be cleaned. The air filter
must be replaced if it is damaged or there is a
loss of engine power.
► Shut off the engine.
2
3
1
0000097407_001
► Take out the screws (1) and remove the filter
cover (2).
► Clean the area around the air filter (3) with a
damp cloth or a soft brush.
► Take out the air filter (3).
► Install the new air filter (3).
► Fit the filter cover (2).
► Insert screws (1) and tighten.
18.3
Venting the Combustion Cham‐
ber
2
1
4
5
3
0000097408_001
► Turn screw (1) counterclockwise.
► Lift the cover (2) and push it backwards.
► Pull off the spark plug boot (3).
► Unscrew the spark plug (4).
► Dry the spark plug (4).
WARNING
■ If the starter grip is pulled out while the spark
plug boot is removed, sparks may escape.
Sparks may cause fires and explosions in
highly flammable or explosive environments.
Persons may be seriously or fatally injured
and property may be damaged.
► Depress the stop switch and keep it
depressed before pulling the starter grip.
► Depress the stop switch and hold it in that
position.
► Pull the starter grip (5) several times and
guide it back slowly.
You have vented the combustion chamber.
► Insert and tighten down the spark plug (4)
firmly.
► Press the spark plug boot (3) firmly home.
► Install cover (2) and tighten screw (1).
19 Specifications
19.1
Brushcutter STIHL FS 511 C-M
–
Displacement: 51.6 cm³
–
Engine power to ISO 8893: 2.4 kW (3.3 bhp)
at 9,500 rpm
–
Idle speed : 2,500 rpm
–
Max. output shaft speed: 7,890 rpm
–
Approved spark plug: NGKBPMR7A from
STIHL
–
Electrode gap of the spark plug: 0.5 mm
–
Dry weight without cutting attachment and
deflector: 10.2 kg
19 Specifications
English
0458-856-0121-A. VA0.B21.
21
Summary of Contents for 561 C-M
Page 1: ...STIHL FS 511 C M 561 C M Instruction Manual 2 24 ...
Page 25: ...23 EC Declaration of Conformity English 0458 856 0121 A VA0 B21 25 ...
Page 26: ...English 23 EC Declaration of Conformity 26 0458 856 0121 A VA0 B21 ...
Page 27: ...23 EC Declaration of Conformity English 0458 856 0121 A VA0 B21 27 ...
Page 28: ...www stihl com 04588560121A 04588560121A 0458 856 0121 A 0458 856 0121 A ...