Common Questions About Kickback; To Use The Cutting Technique; To Use The Limbing Technique - Husqvarna 120i Manual De Usuario

A smaller bar tip radius decreases the force of the
kickback.
Use a low kickback saw chain to decrease the effects of
kickback. Do not let the kickback zone touch an object.
WARNING: No saw chain fully prevents
kickback. Always obey the instructions.

Common questions about kickback

• Will the hand always engage the chain brake during
a kickback?
No. It is necessary to use some force to push the
front hand guard forward. If you do not use the force
necessary, the chain brake will not be engaged. You
must also hold the handles of the product stable with
two hands during work. If a kickback occurs, it is
possible that the chain brake does not stop the saw
chain before it touches you. There are also some
positions in which your hand can not touch the front
hand guard to engage the chain brake. An example
of this is in the felling position.
• Will the inertia release mechanism always engage
the chain brake during kickback?
No. First, the chain brake must operate correctly.
Maintenance on page 20 for instructions
Refer to
about how to do a check of the chain brake. We
recommend you to do this each time before you use
the product. Second, the force of the kickback must
be large to engage the chain brake. If the chain
brake is too sensitive, it can engage during rough
operation.
• Will the chain brake always protect me from injury
during a kickback?
No. The chain brake must operate correctly to give
protection. The chain brake must also be engaged
during a kickback to stop the saw chain. If you are
near the guide bar, it is possible that the chain brake
does not have time to stop the saw chain before it
hits you.
WARNING: Only you and the correct
working technique can prevent kickbacks.

To use the cutting technique

WARNING: Use full power when you cut and
decrease the speed to idle speed after each
cut.
CAUTION: Do not let the motor operate for
too long without load. This can cause
damage to the motor.
1. Put the trunk on a saw horse or runners. (Fig. 62)
1259 - 001 - 11.07.2019
WARNING: Do not cut trunks in a pile.
That increases the risk of kickback and
can cause serious injury or death.
2. Remove the cut pieces from the work area.
WARNING: Cut pieces in the work area
increase the risk of kickback and that
you cannot keep your balance.
To cut a trunk on the ground
1. Cut through the trunk on the pull stroke. Keep full
power but be prepared for sudden accidents. (Fig.
63)
WARNING: Make sure that the saw
chain does not touch the ground when
you complete the kerf.
2. Cut approximately ⅔ through the trunk and then
stop. Turn the trunk and cut from the opposite side.
(Fig. 64)
To cut a trunk that has support on one end
WARNING: Make sure that the trunk does
not break during cutting. Obey the
instructions below.
(Fig. 65)
1. Cut on the push stroke approximately ⅓ through the
trunk.
2. Cut through the trunk on the pull stroke until the two
kerfs touch. (Fig. 66)
To cut a trunk that has support on two ends
WARNING: Make sure that the saw chain
does not get caught in the trunk during
cutting. Obey the instructions below.
(Fig. 67)
1. Cut on the pull stroke approximately ⅓ through the
trunk.
2. Cut through the remaining part of the trunk on the
push stroke to complete the cut. (Fig. 68)
WARNING: Stop the motor if the saw chain
gets caught in the trunk. Use a lever to open
up the kerf and remove the product. Do not
try to pull the product out by hand. This can
result in injury when the product suddenly
breaks free.

To use the limbing technique

Note: For thick branches, use the cutting technique.
To use the cutting technique on page 17 .
Refer to
17