Stihl MSA 300.0 Instruction Manual page 51

12 Testing the Chain Saw and Battery
► 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
► 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.
12.5 Checking the controls
Trigger lockout and trigger
► Engage chain brake and remove battery.
► Try pressing the trigger without pressing the
trigger lockout.
0458-009-9602-A
18.3.
1
3
► If the trigger can be pulled: Do not use your
chainsaw and contact your STIHL servicing
dealer.
The trigger lockout is faulty.
► Press and hold the trigger lockout.
► Press and release the trigger.
► If the trigger switch or the trigger switch lock‐
out is stiff or does not spring back to its initial
position: Do not use the chainsaw. Consult a
STIHL servicing dealer.
The trigger or the trigger lockout is defective.
Switching on the chainsaw
► Insert battery.
► Disengage the chain brake.
► Press and hold the trigger lockout.
► Press the unlock button.
► Press and hold the trigger.
The saw chain runs.
► If 3 LEDs on the battery flash red: Remove the
battery and contact your STIHL dealer for
assistance.
Chainsaw fault.
► Release the trigger.
The saw chain stops running.
► If the chain continues to rotate: Engage the
chain brake, remove the battery and contact
your STIHL servicing dealer.
Your chainsaw is defective.
12.6 Checking Chain Lubrication
► Fit the battery.
► Disengage the chain brake.
► Hold the guide bar over a light surface.
► Switch on the saw.
Chain oil is thrown off the chain and is visible
on the light surface. Chain lubrication is oper‐
ating properly.
► If no chain oil can be seen:
► Fill up with chain oil.
► Check chain lubrication again.
► If chain oil is still not visible on the light sur‐
face: Do not use your chain saw and con‐
tact your STIHL servicing dealer. Chain
lubrication is defective.
12.7 Testing the Battery
► Press button on battery.
The LEDs glow or flash.
► If the LEDs do not glow or flash: Do not use
the battery and contact your STIHL servicing
dealer.
There is a malfunction in the battery.
English
51