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18 Checking the Chain Saw
to unlock the tool again with the trigger switch
lockout. The motor will not switch on unless the
hand guard is set to the
ger switch lockout and trigger switch are pressed
at the same time. Once the trigger switch is acti‐
vated and the saw is running, the operator need
not continue to hold down the trigger switch lock‐
out.
17.2
Switching Off
WARNING
■ The saw chain will continue to rotate for a
short while after the trigger switch is released.
To avoid serious or fatal injury, avoid contact
with the moving saw chain. To reduce the risk
of personal injury from unintended activation
or unauthorized use, switch off the motor,
ensure the chain has stopped, engage the
chain brake and remove the battery before
transporting or putting the chain saw down.
To switch the chain saw off:
► Release the trigger switch and ergo-lever so
that the trigger switch springs back to the
locked position. In the locked position, activa‐
tion of the trigger switch is once again blocked
by the trigger switch lockout.
18 Checking the Chain Saw
18.1
Checking the Operation of the
Chain Brake
WARNING
■ Operating the saw with a missing, damaged,
modified or improperly maintained chain brake
increases the risk of severe or fatal injury from
kickback. Never attempt to modify or disable
the chain brake. Never operate a saw if the
chain brake has been modified or does not
function properly. If you detect a change in the
operating characteristics of the chain brake,
have your saw serviced immediately by an
authorized STIHL servicing dealer.
Before starting work, check the operation of the
chain brake:
► Disengage the chain brake,
► Switch on the chain saw,
► Engage the chain brake by pushing the front
hand guard to the
front handle.
A properly functioning chain brake will stop the
chain within fractions of a second.
0458-022-8201-A
position and the trig‐
15.2.
17.1.
position, away from the
► If the chain brake fails to stop the chain within
fractions of a second, have the saw inspected
and repaired by an authorized STIHL servicing
dealer.
18.2
Testing the Controls
Before starting work, confirm that the ergo-
lever (1), trigger switch lockout (2) and the trigger
switch (3) are undamaged and functioning prop‐
erly.
2
Ergo-Lever (1), Trigger Switch Lockout (2) and
Trigger Switch (3)
WARNING
■ To reduce the risk of serious or fatal injuries,
keep hands, feet and other parts of the body
away from the chain. Do not touch the saw
chain while the battery is inserted. Never
touch moving chain with your hand or any part
of your body,
5.5.2. Keep bystanders out of
the area while testing the controls.
To test the controls:
► Remove the battery.
► Attempt to depress the trigger switch.
If the trigger switch can be depressed without
first depressing the trigger switch lockout, take
the chain saw to an authorized STIHL servic‐
ing dealer to be repaired before use.
► Press down on the ergo-lever. Make sure it
moves freely and springs back into place
when released.
► Unlock the trigger switch lockout by depress‐
ing it.
When you release the trigger switch lockout, it
should return to the locked position.
► Unlock the trigger switch lockout and depress
the ergo-lever at the same time to keep the
trigger switch lockout unlocked.
When you release the trigger switch lockout, it
should remain unlocked as long as you hold
down the ergo-lever.
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