Stihl MS 181 User Manual

20 MS 171, MS 181, MS 211
: Fit the clutch shoes (1) over the
arms (2).
: Clamp the clutch in a vise
(arrow).
Attach the springs to the side with
the raised hexagon (arrow).
: Attach one end of each spring (1)
to the clutch shoes.
: Use the hook (2) 5910 890 2800
to attach the other ends of the
springs and press them firmly into
the clutch shoes – do not
overstretch the springs.
533RA015 TG
12
533RA016 TG
1
2
533RA017 TG
: Check the clutch – all springs
(arrows) must be properly
attached.
– Cover washer (1) must be in
position.
It is correctly fitted when “TOP”
(arrow) faces outwards.
: Position the clutch on the
crankshaft stub so that the raised
hexagon (arrow) faces outwards.
533RA018 TG
TOP
533RA019 TG
1
TOP
533RA020 TG
: Use the hexagon (arrow) to
screw the clutch (1) onto the
crankshaft stub. Check the
position of the locking strip and
then tighten down the clutch
firmly – left-hand thread.
– Tightening torques, b 3.5
– Remove the locking strip from the
cylinder.
– Reassemble all other parts in the
reverse sequence.
TOP
533RA021 TG
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