Husqvarna 545 TrioBrake Operator's Manual page 31

Checking the inertia brake release
With the engine turned off, hold the chain saw over a
stump or other firm object. Let go of the front handle so
that the bar drops towards the stump as the chain saw
rotates around the rear handle.
When the bar hits the stump the brake should be
activated.
Checking the right-hand brake trigger
Check that the right hand guard is not damaged and that
there are no visible defects, such as cracks.
Push the trigger up and forwards to check that it moves
freely and is securely hinged to the clutch cover.
Never carry or hang the saw by the trigger! This could
damage the mechanism and disable the chain brake.
MAINTENANCE
Checking the brake trigger
Place the chain saw on firm ground and start it. Make sure
the chain does not touch the ground or any other object.
See the instructions under the heading Start and stop.
Grasp the chain saw firmly, wrapping your fingers and
thumbs around the handles.
Apply full throttle and activate the chain brake by tilting
your left wrist forward onto the front hand guard. Do not let
go of the front handle. The chain should stop
immediately.
Throttle lockout
• Make sure the throttle control is locked at the idle
setting when the throttle lockout is released.
• Press the throttle lockout and make sure it returns to
its original position when you release it.
• Check that the throttle trigger and throttle lockout
move freely and that the return springs work properly.
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English 31