Stihl MS 181 User Manual

61MS 171, MS 181, MS 211
The handle frame can be loosened
to simplify the following operations.
– Remove the shroud, b 8.4
: Remove the screws (arrows)
from the anti-vibration springs on
the oil tank and cylinder.
: Remove the screw (arrow).
– Lower the handle frame (1) a
little.
: Remove the screw (arrow).
– Take out the anti-vibration spring.
533RA232 TG533RA233 TG533RA234 TG
1
– Unscrew both bearing plugs from
the anti-vibration spring.
– Inspect individual components
and replace if necessary.
– Screw home the bearing plugs as
far as stop.
: Position anti-vibration spring in
its seat (arrow) in the handle
frames.
– Insert screw and tighten it down
firmly.
: Lift the handle frame a little and
handle frame push the anti-
vibration spring over the mount
(arrow).
– Insert screw and tighten it down
firmly.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
533RA236 TG
533RA237 TG
11.3 AV Spring on Cylinder
The anti-vibration spring is located
between the handle frame and
cylinder.
– Remove the chain sprocket
cover, bar and chain, b 5
– Remove the shroud, b 8.4
– Remove the screw from the
cylinder.
: Disconnect the retainer (arrow)
and unscrew the bearing plug (1).
– Unscrew the spring from the
handle frame and pull out the
retainer.
– Inspect the bearing plug (1),
spring (2) and retainer (3) and
replace if necessary.
533RA239 TG
1
533RA240 TG
1
2
3
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Stihl MS 181 Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	400 mm
Product color	Black, Grey, Orange
Chain tensioner	Yes
Motor speed (max)	10000 RPM
Fuel tank capacity	0.266 L
Engine displacement	31.8 cm³
Power source	Gasoline
Sound power level	112 dB
Vibration emission	3.5 m/s²
Sound pressure level	100 dB

Weight and Dimensions

Weight	43004300 g