Stihl MS 181 Instruction Manual

MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C
English
49
Engine
STIHL single cylinder two-stroke engine
MS 171, MS 171 C
MS 181, MS 181 C
MS 211, MS 211 C
Ignition system
Electronic magneto ignition
Fuel system
All-position diaphragm carburetor with
integral fuel pump
Chain lubrication
Fully automatic, speed-controlled oil
pump with reciprocating piston
Weight
Cutting attachment MS 171, MS 171 C,
MS 181, MS 181 C
The actual cutting length can be less
than the specified cutting length.
Rollomatic E Mini Light guide bars
Rollomatic E Mini guide bars
Saw chain 3/8" Picco
Chain sprocket
The average chain speed during
operation is normally approx. 20% less
than the maximum chain speed to
ISO 11681. Contact the STIHL dealer
when selecting the personal protective
equipment.
Cutting attachment MS 211, MS 211 C
The actual cutting length can be less
than the specified cutting length.
Specifications
Displacement: 31.8 cm
3
Cylinder bore: 38 mm
Piston stroke: 28 mm
Engine power accord-
ing to ISO 7293:
1.3 kW (1.8 HP)
at 10000 rpm
Idle speed:
1)
2800 rpm
Displacement: 31.8 cm
3
Cylinder bore: 38 mm
Piston stroke: 28 mm
Engine power accord-
ing to ISO 7293:
1.5 kW (2.0 HP)
at 10000 rpm
Idle speed:
1)
2800 rpm
Displacement: 35.2 cm
3
Cylinder bore: 40 mm
Piston stroke: 28 mm
Engine power accord-
ing to ISO 7293:
1.7 kW (2.3 HP)
at 10000 rpm
Idle speed:
1)
1)
to ISO 11681 +/- 50 rpm
2800 rpm
Spark plug
(suppressed): NGK CMR6H
Bosch USR4AC
Electrode gap: 0.5 mm
Fuel tank capacity: 270 cm
3
(0.27 l)
Oil tank capacity: 265 cm
3
(0.265 l)
Dry, without cutting attachment
MS 171: 4.3 kg
MS 171 C 4.6 kg
MS 181: 4.3 kg
MS 181 C: 4.6 kg
MS 211: 4.3 kg
MS 211 C: 4.6 kg
Cutting lengths: 30, 35 cm
Pitch: 3/8"P (9.32 mm)
Groove width: 1.1 mm
Sprocket nose: 7-tooth
Cutting lengths: 30, 35, 40 cm
Pitch: 3/8"P (9.32 mm)
Groove width: 1.1 mm
Sprocket nose: 7-tooth
Picco Micro Mini 3 (61 PMM3)
Type 3610
Pitch: 3/8"P (9.32 mm)
Drive link gauge: 1.1 mm
6-tooth for 3/8"P (spur chain sprocket)
Max. chain speed to
ISO 11681: 24.8 m/s

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