Stihl MS 881 User Manual

2
1
1
0000-GXX-2929-A1
a
► Loosen the nuts (1).
► Disengage the chain brake.
► Hold the bar nose up and turn the tensioning
screw (2) clockwise until the following points
apply:
–
Chain sag ‘a’ in the center of the bar is 1 - 2
mm.
–
The chain can still be pulled easily along the
bar with two fingers.
► Keep holding the bar nose up and tighten
down the nuts (1) firmly.
► If chain sag ‘a’ in the center of the bar is not 1
- 2 mm: Readjust chain tension.
6.3 Filling Up with Chain Oil
Chain oil lubricates and cools the rotating chain.
► Shut off the engine and engage the chain
brake.
► Place your saw on a level surface so that the
oil tank cap faces up.
► Use a damp cloth to clean the tank cap and
the area around it.
0000-GXX-2930-A0
► Swing the grip on the oil tank cap to the verti‐
cal position.
► Turn the oil tank cap counterclockwise as far
as stop.
► Remove the oil tank cap.
► Fill up with chain oil, taking care not to spill
any oil and do not overfill the tank.
► If the grip on the oil tank cap has dropped into
the closed position: Raise the grip until it is
vertical.
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3
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1
► Place the cap in the filler opening so that mark
(1) lines up with mark (2).
► Press the cap down and rotate it clockwise as
far as stop.
The cap snaps into place. The mark (1) points
to mark (3),
► Check to see if the oil tank cap can be pulled
upwards and off.
► If the oil tank cap cannot be pulled upwards
and off: Fold down the grip on the oil tank cap.
The oil tank is closed.
If the oil tank cap can be pulled upwards and off,
perform the following steps:
► Place the oil tank cap in the filler opening – in
any position.
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0000-GXX-3135-A0
2
► Press the cap down and rotate it clockwise as
far as stop.
► Press the cap down and rotate it counterclock‐
wise until mark (1) points to mark (2).
► Now try again to close the oil tank.
► If the oil tank still cannot be closed properly:
Do not use the chainsaw and contact a STIHL
dealer for assistance.
The chainsaw is not in a safe condition.
7 Engaging and Disengaging
the Chain Brake
7.1 Engaging the Chain Brake
The saw is equipped with a chain brake.
The chain brake is activated by the inertia of the
front hand guard if the kickback force is high
enough or can be engaged by the operator.
English 7 Engaging and Disengaging the Chain Brake
12 0458-890-8321-B. VA0.A21.

Stihl MS 881 Specifications

General

Idle speed	2800 RPM
Motor type	2-stroke motor
Chain pitch	1/2.47 \
Blade length	900 mm
Product color	Black, Grey, Orange
Motor speed (max)	8500 RPM
Oil tank capacity	0.7 L
Fuel tank capacity	1.3 L
Engine displacement	121.6 cm³
Kickback protection	Yes
Engine power	8.7 hp
Power source	Gasoline
Sound power level	118 dB
Vibration emission	8.9 m/s²
Sound pressure level	106 dB

Weight and Dimensions

Weight	9800 g