Tensioning The Saw Chain; Filling Up With Chain Oil - Stihl MSA 120 C Instruction Manual

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► Rotate the wingnut clockwise until the chain sprocket
cover is firmly seated.
► Fold down the grip of the wingnut.
7.1.2 Removing the bar and chain
► Raise the grip of the wingnut.
► Rotate the wingnut counterclockwise until the chain
sprocket cover can be removed.
► Remove the sprocket cover.
► Turn the tensioning gear (4) clockwise as far as stop.
The chain is now slack.
► Removing the bar and chain
► Take out the screw in the tensioning gear.
► Remove the tensioning gear.
7.2

Tensioning the Saw Chain

The saw chain expands or contracts during cutting work.
Chain tension changes as a result. Check chain tension
regularly during operation and readjust if necessary.
► Switch off the chain saw, engage the chain brake and
remove the battery.
2
► Raise the grip of the wingnut (1).
► Rotate the wingnut (1) two turns counterclockwise.
The wingnut (1) is loose.
► Disengage the chain brake.
► Rotate the adjusting wheel (2) clockwise until:
20
► If a Carving guide bar is used: Rotate the adjusting wheel
► If the chain can no longer be pulled along the bar by hand:
► Rotate the wingnut (1) clockwise until the chain sprocket
► Fold down the grip of the wingnut (1).
7.3
Chain oil lubricates and cools the rotating chain.
► Switch off the chain saw, engage the chain brake and
► Place your saw on a level surface so that the oil tank cap
► Use a damp cloth to clean the tank cap and the area
1
► Turn the tank cap counterclockwise until it can be
► Remove the oil tank cap.
► Fill up with chain oil, taking care not to spill any oil and do
– The chain fits snugly against the underside of the bar.
– The chain can still be pulled easily along the bar with
two fingers.
(2) clockwise until the drive links on the underside of the
bar are just half visible.
Rotate the adjusting wheel (2) counterclockwise until the
chain can be pulled easily along the bar with two fingers.
cover is firmly seated.

Filling Up with Chain Oil

remove the battery.
faces up.
around it.
removed.
not overfill the tank.
7 Assembling the Saw
0458-716-0121-B