POTENTIAL DANGERS
21
Chain Brake
One safety feature of the chain saw is the chain brake. It
will not prevent a kickback, but is designed to stop the
saw chain. When the chain brake is triggered, a
mechanism which locks the clutch drum is activated and
stops the saw chain almost instantly. The mechanism
can be reset by moving the hand guard back against the
front handle.
The chain brake is designed to activate when the front
hand guard is moved forward. This can be done in two
ways. Manually or by Inertia.
You can manually move the front hand guard forward
with your left hand and activate the chain brake. This
may be done intentionally when you need to activate the
chain brake. It can also occur if you left hand slips off the
front handle and moves the front hand guard forward.
The forces of a kickback can also activate the chain
brake without your hand touching the front hand guard.
This is called inertia activation.
Will My Hand Always Activate the Chain 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.
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.
Will My Inetria Activated Chain Brake Always
Activate During Kickback in the Event of a
Kickback?
No. First your brake must be in working order. Testing
the brake is simple. We recommend you do before you
begin each work pass. 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?
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 to 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.
CHAIN BRAKE
DISENGAGE THE CHAIN BRAKE
ACTIVATE THE CHAIN BRAKE
! CAUTION!
A chain brake may not always activate during a
kickback. A chain brake can give you its intended
protection only if it is properly maintained. A
neglected and abused chain brake might not work
when you need it most. Test the chain brake
periodically to be sure it will work for you if you have
a kickback. We recommend that you test the chain
brake after each work break. If the chain brake does
not activate, clean it and check that the mechanism
is not damaged. If the chain brake still does not
work, take you chain saw to your servicing dealer for
repair.
Please refer to your Operator's Manual for proper
testing procedure of the chain brake on your saw.
IMPORTANT!
Kickback and its possible consequences can be
avoided.
•Use proper working techniques.
•Do not use the kickback danger zone of the bar
•Avoid unsafe positions.
•Use proper grip.
•Cut at high speed.
•Have control over your work piece.
•Be alert.
For Husqvarna Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com
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