► 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
0000-GXX-1216-A0
► 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.
0000-GXX-1217-A0
► 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, 21.3.
–
Bar groove is pinched or splayed.
► If you have any queries: Contact your STIHL
servicing dealer.
12.3
Checking the Saw Chain
► Switch off the chainsaw, engage the chain
brake and remove the battery.
1
0000-GXX-1218-A0
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), 18.3.
0000-GXX-1372-A0
1
2
3
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.
English
12 Testing the Chain Saw and Battery
42
0458-791-9621-C