Testing The Chain Saw And Battery - Stihl MSA 161 T Instruction Manual

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► 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.
12 Testing the Chain Saw and
Battery
12.1 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.
12.2 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.
42
21.3.

12 Testing the Chain Saw and Battery

12.3 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),
2
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: Do not use your chainsaw and contact
your STIHL servicing dealer.
► Use a STIHL filing gauge to check that a filing
angle of 30° has been maintained on all cut‐
ters. The STIHL filing gauge must match the
chain pitch.
► If a filing angle of 30° has not been main‐
tained: Resharpen the saw chain.
► If you have any queries: Contact your STIHL
servicing dealer for assistance.
12.4 Testing the Chain Brake
► Switch on the saw.
► Engage the chain brake.
The chain brake is operating properly If the
chain stops immediately.
► If the chain does not stop immediately: Do not
use your chainsaw and contact your STIHL
servicing dealer for assistance.
The chain brake is defective.
12.5 Checking the controls
Lockout button, Ergo lever and trigger
► Engage chain brake and remove battery.
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18.3.
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0458-791-9821-D