Switching Off; Testing The Chain Saw And Battery; Checking The Chain Sprocket; Checking The Guide Bar - Stihl MSA 120 C Manual De Instrucciones

11 Testing the Chain Saw and Battery

► Hold the saw with your right hand on the grip
area (1) of the control handle – wrap your
thumb around the control handle.
► Depress the lockout button (2) with your
thumb and hold it there.
► Pull the trigger (3) with your index finger and
hold it there.
The motor is accelerated and the chain
rotates. Release the lockout button (2).
► Hold the saw with your left hand on the front
handle – wrap your thumb around the handle‐
bar.
10.2

Switching Off

► Release the trigger.
The chain stops rotating.
► If the chain continues to rotate: Engage the
chain brake, remove the battery and contact
your STIHL servicing dealer for assistance.
The saw has a malfunction.
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.
0458-716-9821-E
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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.
► 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,
– 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 chainsaw, 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 fil‐
ing gauge must match the chain pitch.
► If a depth gauge (1) projects from the filing
gauge (2): Lower the depth gauge (1),
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4
► Make sure the service marks (1 to 4) on the
cutters are visible.
English
20.3.
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17.2.
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