Stihl FS 80 Service Manual

61FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85
: Press down the lock button
(arrow) and hold it in that
position.
: Pull out the drive shaft (1)
together with the sleeve (2).
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936RA061
2 1
: Pull out the clips (1).
: If the sleeve (2) is fitted, heat it
with a hot air blower.
– Remove the sleeve.
If the drive shaft has turned blue,
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21
always install a new one.
: Push the sleeve (1) onto the drive
shaft (2).
: Press the sleeve (3) on to the
knurling.
– Fit the clips.
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936RA063
31 2
– Before installing the drive shaft,
coat it with STIHL gear lubricant
0781 120 1109, b 12.
Apply the lubricant evenly to the
drive shaft. Never pump lubricant
directly into the drive tube.
: Push the drive shaft (1) with
sleeve (2) into the drive tube.
: Press down the lock button
(arrow) and push the sleeve (2)
home as far as stop.
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2 1
: Push the coupling sleeve (1) onto
the drive tube (2) as far as stop.
Line up the coupling sleeve so that
the slot engages the lug and the gap
in the clamp points down.
: Tighten down the clamp screw
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12 3
(3) firmly.
– Fit the drive tube.
– Tighten down the wing screw
firmly.

Stihl FS 80 Specifications

General

Engine Type	2-stroke
Displacement	25.4 cc
Cutting Diameter	420 mm
Shaft Type	Straight
Starter	Recoil
Sound Power Level	106 dB(A)
Fuel Capacity	0.44 liters
Vibration Level	4.5 m/s²