Stihl MS 181 User Manual

19MS 171, MS 181, MS 211
6. Clutch
– Troubleshooting, b 4.1
– Remove the chain sprocket
cover, bar and chain, b 5
– Remove the clutch drum, b 6.1
– Remove the shroud, b 8.4
– The spring may be preloaded on
machines with ErgoStart. It is
therefore necessary to remove
the fan housing, b 10.1 and
b 10.2
: Pull off the spark plug boot (1).
: Unscrew the spark plug (1).
533RA007 TG
1
533RA008 TG
1
: Push the locking strip (1)
0000 893 5904 into the spark
plug hole until it butts against the
cylinder wall (arrow) as shown.
: Unscrew the clutch (1).
Note that the clutch has a left-hand
thread.
Disassembling
– Clamp the clutch in a vise.
: Use hook (2) 5910 890 2800 to
remove the clutch springs (1).
533RA009 TG
1
TOP
533RA010 TG
1
1
2
533RA011 TG
– Pull the clutch shoes off the
carrier.
: Pull the retainers (1) off the clutch
shoes.
– Clean all parts, b 16
– Replace any damaged parts.
: Slip the retainers (1) onto the
clutch shoes.
533RA012 TG
1
533RA013 TG533RA014 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