Husqvarna 353 EPA III TrioBrake 用户手册
GENERAL SAFETY PRECAUTIONS
10 – English
Will my hand always activate the chain
brake during a kickback?
brake during a kickback?
No. It takes a certain force to move the hand guard forward.
If your hand only lightly touches the front guard or slips over
it, the force may not be enough to trigger the chain brake. You
should also maintain a firm grip of the chain saw handles
while working. If you do and experience a kickback, your
hand may never leave the front handle and will not activate
the chain brake, or the chain brake will only activate after the
saw has swung around a considerable distance. In such
instances, the chain brake might not have enough time to
stop the saw chain before it touches you.
If your hand only lightly touches the front guard or slips over
it, the force may not be enough to trigger the chain brake. You
should also maintain a firm grip of the chain saw handles
while working. If you do and experience a kickback, your
hand may never leave the front handle and will not activate
the chain brake, or the chain brake will only activate after the
saw has swung around a considerable distance. In such
instances, the chain brake might not have enough time to
stop the saw chain before it touches you.
There are also certain positions in which your hand cannot
reach the front hand guard to activate the chain brake; for
example, when the saw chain is held in felling position.
reach the front hand guard to activate the chain brake; for
example, when the saw chain is held in felling position.
Will my inetria activated chain brake always
activate during kickback in the event of a
kickback?
activate during kickback in the event of a
kickback?
No. First your brake must be in working order. Testing the
brake is simple, see instructions under the heading
Checking, maintaining and servicing chain saw safety
equipment. We recommend you do before you begin each
work session. Second the kickback must be strong enough
to activate the chain brake. If the chain brake is too sensitive
it would activate all the time which would be a nuisance.
brake is simple, see instructions under the heading
Checking, maintaining and servicing chain saw safety
equipment. We recommend you do before you begin each
work session. Second the kickback must be strong enough
to activate the chain brake. If the chain brake is too sensitive
it would activate all the time which would be a nuisance.
Will my chain brake always protect me from
injury in the event of a kickback?
injury in the event of a kickback?
No. First, the chain brake must be in working order to provide
the intended protection. Second, it must be activated during
the kickback as described above to stop the saw chain.
Third, the chain brake may be activated but if the bar is too
close to you the brake might not have enough time to slow
down and stop the chain before the chain saw hits you.
the intended protection. Second, it must be activated during
the kickback as described above to stop the saw chain.
Third, the chain brake may be activated but if the bar is too
close to you the brake might not have enough time to slow
down and stop the chain before the chain saw hits you.
Only you and proper working technique can eliminate
kickback and its danger.
kickback and its danger.
Throttle lockout
The throttle lockout is designed to prevent accidental
operation of the throttle control. When you press the lock (A)
(i.e. when you grasp the handle) it releases the throttle
control (B). When you release the handle the throttle control
and the throttle lockout both move back to their original
positions. This arrangement means that the throttle control is
automatically locked at the idle setting.
operation of the throttle control. When you press the lock (A)
(i.e. when you grasp the handle) it releases the throttle
control (B). When you release the handle the throttle control
and the throttle lockout both move back to their original
positions. This arrangement means that the throttle control is
automatically locked at the idle setting.
Chain catcher
The chain catcher is designed to catch the chain if it snaps
or jumps off. Replace it if necessary with an aluminium chain
catcher (is available as spare part). This should not happen
if the chain is properly tensioned (see instructions under the
heading Assembly) and if the bar and chain are properly
serviced and maintained (see instructions under the heading
General working instructions).
or jumps off. Replace it if necessary with an aluminium chain
catcher (is available as spare part). This should not happen
if the chain is properly tensioned (see instructions under the
heading Assembly) and if the bar and chain are properly
serviced and maintained (see instructions under the heading
General working instructions).
Right hand guard
Apart from protecting your hand if the chain jumps or snaps,
the right hand guard stops branches and twigs from
interfering with your grip on the rear handle.
the right hand guard stops branches and twigs from
interfering with your grip on the rear handle.
Vibration damping system
Your machine is equipped with a vibration damping system
that is designed to reduce vibration and make operation
easier.
that is designed to reduce vibration and make operation
easier.
The machine
′
s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine
equipment and the machine
′
s handle unit. The body of the
chain saw, including the cutting equipment, is insulated from
the handles by vibration damping units.
the handles by vibration damping units.
Cutting hardwoods (most broadleaf trees) creates more
vibration than cutting softwoods (most conifers). Cutting with
vibration than cutting softwoods (most conifers). Cutting with
A
B