Instruction Manual

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.
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, 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 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), 17.2.
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.
11.4 Testing the Chain Brake
► Engage the chain brake and remove the bat‐
tery.
WARNING
■ The chain's cutters are very sharp. There is a
risk of cut injuries.
► Wear work gloves made of durable mate‐
rial.
► 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: Do not use your chain saw and contact
your STIHL servicing dealer.
The chain brake is defective.
11.5 Checking the controls
Lockout button and trigger
► Engage chain brake and remove battery.
► Attempt to pull the trigger lever without
depressing the lockout button.
► If the trigger can be pulled: Do not use your
chainsaw and contact your STIHL servicing
dealer.
The lockout button is defective.
► Press and hold the lockout button.
► Press and release the trigger.
► If the trigger is stiff or does not spring back to
its idle position: Do not use your chainsaw and
contact your STIHL servicing dealer for assis‐
tance.
The trigger is defective.
Switching on the chainsaw
► Insert battery.
► Disengage the chain brake.
► Press and hold the lockout button.
► Press and hold the trigger.
The saw chain starts running.
► Release the trigger.
The saw chain stops running.
English 11 Testing the Chain Saw and Battery
18 0458-716-0121-D