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19 Checking the Chain Saw
To switch the chain saw off:
► Release the trigger switch so that it springs back to the
locked position. In the locked position, activation of the
trigger switch is once again blocked by the trigger switch
lockout.
The saw chain will continue to rotate for a short while after
the trigger switch is released.
19.1 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 chain 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, @ 16.2.
► Switch on the chain saw, @ 18.1.
► Engage the chain brake by pushing the front hand guard
to the position, away from the front handle.
A properly functioning chain brake will stop the chain
within fractions of a second.
► 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.
19.2 Testing the Controls
Before starting work, confirm that the trigger switch
lockout (1) and the trigger switch (2) are undamaged and
functioning properly.
Trigger Switch Lockout (1) and Trigger Switch (2)
WARNING
To reduce the risk of serious or fatal injuries, keep hands,
feet and other parts of the body away from the saw chain. Do
not touch the saw chain while the battery is inserted. Never
touch moving saw chain with your hand or any part of your
body, @ 6.5.2. 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 servicing dealer to be repaired
before use.
19 Checking the Chain Saw
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