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Stihl FS 120 Manual

Stihl FS 120
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5/20/2018
STIHL FS 350 Service manual.pdf - slidepdf.com
http://slidepdf.com/reader/full/stihl-fs-350-service-manualpdf 29/63
Secure cable retainer (1) with
outer screw.
Slide the setting gauge (2)
1127 890 6400 between the
arms of the ignition module and
the flywheel magnet poles.
- Press the ignition module
against the flywheel and tighten
down the mounting screws to a
torque of 6.0 Nm (4.4 lbf.ft).
Reassemble all other parts in the
reverse sequence.
Removing the flywheel:
- Remove the fan housing -see
6.2.
- Pull off the spark plug boot.
- Unscrew the spark plug.
FS 120...350, FR 350
Fit locking strip (1)
0000 893 5903.
FS 400/450, FR 450
- Fit locking strip
4221 893 5900.
All models
Unscrew the flywheel nut.
- Pull off the flywheel.
Note:If the flywheel cannot be
removed by hand, screw on the
puller (1) 4133 893 0800 and tap
its end to release the flywheel.
Unscrew the puller.
Inspect the flywheel (1) and
magnet poles (2). If you find any
damage, install a new flywheel.
Installing the flywheel:
Important:Clean the stub of the
crankshaft and the flywheel hub
bore with a standard commercial,
solvent-based degreasant which
contains no chlorinated or
halogenated hydrocarbons -see
13.2.
- Fit the flywheel.
Note:Check position of slot.
Assemble all other parts in the
reverse sequence.
- Fit flywheel nut. Tighten nut on
FS 120 to 24 Nm (17.7 lbf.ft).
Tighten nut on all other models
to 32 Nm (23.6 lbf.ft).
5.4 Flywheel
2
5
0
R
A
1
1
0
2
1
V
A
2
5
0
R
A
1
0
6
1
V
A
2
5
0
R
A
1
0
9
1
V
A
2
5
0
R
A
1
0
7
V
A
2
2
5
0
R
A
1
0
5
1
V
A
28 FS 120, 200, 300, 350, 400, 450, FR 350, 450

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Stihl FS 120 Specifications

General IconGeneral
Power sourceGasoline
TypeBrush cutter
CordlessYes
Head typeNylon line
Handle typeU-type handle
Engine power1.8 hp
Product colorBlack, Metallic, Orange
Uncertainty K2 m/s²
Sound power level110 dB
Fuel tank capacity0.64 L
Vibration emission4.9 m/s²
Engine displacement30.8 cm³
Sound pressure level98 dB
Cutting diameter (max)- mm
Weight and Dimensions IconWeight and Dimensions
Length1760 mm
Weight6300 g

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