Testing The Chain Brake; Checking The Controls - Stihl MSA 120 C Gebrauchsanleitung

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► Use a STIHL filing gauge to check the height of the depth
gauges (1). The STIHL filing gauge must match the chain
pitch.
► If a depth gauge (1) projects from the filing gauge (2):
Lower the depth gauge (1), @ 17.3.
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4
► Make sure the service marks (1 to 4) on the cutters are
visible.
► If one of the service marks is not visible on a cutter:
Contact your STIHL servicing dealer.
► Use a STIHL filing gauge to check the filing angles on the
cutters, @ 19.4. The STIHL filing gauge must match the
chain pitch.
► If the filing angles are not correct: Sharpen the chain,
@ 19.4.
► If you have any queries: Contact your STIHL servicing
dealer.
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1
3

11.4 Testing the chain brake

► Engage the chain brake, @ 8.1.
► Remove the battery, @ 9.2.
WARNING
The chain's cutters are very sharp. This can result in personal
injury.
► Wear work gloves made of durable material.
► Try to pull the chain along the guide bar by hand.
If the chain cannot be pulled along the bar by hand, the
chain brake is functioning.
► If the chain can be pulled along the bar by hand: Contact
your STIHL servicing dealer.
The chain brake is defective.

11.5 Checking the controls

► Engage the chain brake, @ 8.1.
► Remove the battery, @ 9.2.
► Try to pull the trigger.
► If the trigger can be pulled: Contact your STIHL servicing
dealer.
The lockout button is faulty.
► Depress the lockout button and hold it in that position.
► Pull the trigger and then let it go.
► If the trigger is stiff or does not spring back to its idle
position: Contact your STIHL servicing dealer.
The trigger has a malfunction.
► Fit the battery, @ 9.1.
► Disengage the chain brake, @ 8.2.
11 Checking the Saw
MSA 120 C