Stihl MS 181 User Manual

62 MS 171, MS 181, MS 211
– Screw the spring onto peg on the
handle frame as far as stop.
: Insert and attach the retainer
(arrow) to the bearing plug (1).
– Screw bearing plug (1) into spring
as far as stop.
– Install the handle frame, b 11.4
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
11.4 Handle Frame
– Remove the chain sprocket
cover, bar and chain, b 5
– Remove the shroud, b 8.4
– Remove the filter base, b 14.2
– Disconnect the throttle rod,
b 14.6
533RA239 TG
1
: Remove screws (arrows) from
anti-vibration springs on oil tank
and cylinder.
: Remove the screw (arrow).
– Pry the anti-vibration springs out
of their mounts.
: Pull tank vent hose (1) off the
nipple.
– Hold the rear handle, turn the
handle frame to the right and take
it out.
533RA232 TG533RA233 TG
533RA242 TG
1
– Inspect the handle frame and
replace if necessary.
If replacement is necessary, the
anti-vibration springs, tank vent,
handle molding and the Master
Control lever have to be transferred
to the new handle frame.
Always replace damaged parts.
– Position the handle frame (1) on
the engine housing.
: Push the tank vent hose (2) on to
the nipple (arrow).
Do not use a tool for this job since it
may damage the hose.
533RA243 TG
533RA244 TG
2
1
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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