Switching Off The Chain Saw; Testing The Chain Saw And Battery; Checking The Chain Sprocket; Checking The Guide Bar - Stihl MSA 120 C Notice D'emploi

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10.2 Switching Off the Chain Saw

► Release the trigger and lockout button.
The saw chain stops running.
► If the chain continues to run: Engage the chain brake,
remove the battery and contact a STIHL servicing dealer.
The chain saw is defective.

11 Testing the Chain Saw and Battery

11.1 Checking the Chain Sprocket

► Switch off the chain saw, engage the chain brake and
remove the battery.
► Disengage the chain brake.
► Remove the chain sprocket cover.
► Remove the bar and chain.
a
► Use a STIHL gauge to check the wear marks on the
sprocket.
► If wear marks are deeper than a = 0.5 mm: Do not use your
chain saw and contact your STIHL servicing dealer.
The chain sprocket must be replaced.

11.2 Checking the Guide Bar

► Switch off the chain saw, engage the chain brake and
remove the battery.
► Remove the chain and guide bar.
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11 Testing the Chain Saw and Battery
► Measure depth of bar groove with scale on STIHL filing
gauge.
► Install a new guide bar if one of the following points
applies:
– Guide bar is damaged.
– Measured bar depth is less than specified minimum
depth, @ 20.3.
– Bar groove is pinched or splayed.
► If you have any queries: Contact your STIHL servicing
dealer.

11.3 Checking the Saw Chain

► Switch off the chain saw, engage the chain brake and
remove the battery.
2
► Use a STIHL filing gauge (2) to check the height of the
depth gauges (1). The STIHL filing gauge must match the
chain pitch.
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0458-716-9621-B