Stihl MS 171 Manual page 61

11. Servicing the AV System
Vibration-damping springs are used
for the connection between the
handle frame and engine housing.
Damaged springs must always be
replaced.
11.1 AV Spring on Oil Tank
The anti-vibration spring is located
in the area of the oil tank and
secured to the underside of the
machine.
– Remove the chain sprocket
cover, bar and chain, b 5
: Remove the screw (arrow).
1
– Remove the shroud, b 8.4
: Remove the screw (arrow).
– Lower the handle frame (1) a
little.
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: Pry the anti-vibration spring out of
its seat (arrow).
– Unscrew the anti-vibration spring
from the handle frame.
2
– Unscrew the bearing plug (1).
– Inspect the anti-vibration spring
and plug and replace if
necessary.
– Screw home the bearing plug (1)
as far as stop.
: Screw the anti-vibration spring
(2) into the handle frame (arrow)
as far as stop.
: Lift the handle frame a little and
engage the tab (arrow) of the
anti-vibration spring in the
(arrow) in its seat.
– Fit screw in anti-vibration spring
and tighten it down firmly.
– Position the anti-vibration spring
on the cylinder, insert the screw
and tighten it down firmly.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
1
11.2 AV Spring on Fuel Tank
The anti-vibration spring is located
in the area of the fuel tank and
secured to the underside of the
machine.
– Remove the chain sprocket
cover, bar and chain, b 5
MS 171, MS 181, MS 211