Stihl FS 50 Service Manual

5Series 4144 Components FC, FS, KM
3.4 Tightening Torquese
DG and P (Plastoform) screws are used in polymer and light metal components. These screws form a
permanent thread when they are installed for the first time. They can be removed and installed as often as
necessary without impairing the strength of the screwed assembly, providing the specified tightening torque is
observed.
For this reason it is essential to use a torque wrench.
Fastener Thread size For component Torque
Nm
Remarks
Screw P 6x14 Line limiting blade/deflector 2.5
Screw M 5x30 Control handle/handle/nut with washer 2.0
Screw P 5x14 Filter cover/filter housing 3.0
Nut M 5 Filter housing/carburetor/spacer flange 3.5
Screw P 4x12 Throttle cable/engine housing 1.5
Screw D 6x28 Gearbox/drive tube clamp (FS 56) 12.0
Screw D 5x20 Shroud/cylinder 6.0
Screw M 6x35 Clamp/clamp block/clamp 4.5
Screw M 6x25 Clamp/loop handle 4.5
Screw P 5x20 Engine housing/shroud 4.0
Screw M 5x20 Engine housing/crankcase 7.0
Screw P 5x20 Engine housing torsion lock/drive tube 4.0
Screw M 5x14 Deflector/gearbox (FS 56) 4.5
Screw M 6x30 Deflector/drive tube/nut /FS 40,50) 5.0
Screw M 6x14 Clamp/drive tube/harness ring 4.5
Screw D 5x20 Starter cover/crankcase 6.0
Screw D 5x20 Starter cover/engine pan 6.0
Screw M 4x9 End cover/carburetor 2.0

Stihl FS 50 Specifications

General

Engine Displacement	27.2 cc
Power Output	0.8 kW
Engine Type	2-stroke
Shaft Type	Straight
Starter System	Recoil
Overall Length	147 cm
Vibration Level	4.5 m/s²