11
English
In case the brake is not eff ective, ask our dealer for inspection and
repairs. If the engine keep rotating at high speed with the brake
engaged, the clutch will overh causing trouble.
When the brake engages during operation, immediately relea the
throttle lever to stop the engine.
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Do not carry the machine with the engine running.
Stopping (Fig. 17
Decrease engine speed, and push ignition switch (15) to stop
position.
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KICKBACK DAN (Fi 18)
One of the most severe dangers when wor with a chain saw is
the possibility of kickback. Kickback may occur when the upper tip
of the guide bar touches an object, or when the wo closes in and
pinches the saw chain in the cut. Tip contact
in some cases may
cause a lightning fast reverse reaction, kicking the guide bar up and
back towa you. Pinching the saw chain along the to of the guide
bar may also push the guide bar rapidly back towards you. Either of
these reactions ma cause you to lose control
of the saw which could
result in serious personal injur Even though yo saw has safety
built into its design, yo should not rely on these safety feat
exclu Know where yo bar tip is at all times. Kickback does
occur if you allow the kickback zone (19) of the bar
to to an object.
Do not use that area. Kickback from pinching is caused by a cut
closing and pinching the upper side of the guide bar. Study yo cut
and mak sure it will open as you cut through Maintain con when
the engine is running by always ke
a fi rm grip on the saw with
your right hand on the rear handle, your left hand on the front handle
and your thumbs and fi ngers encircling the handles. Always hold the
saw with both hands during operation and cut at high engine speed.
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○ Do no overre or cut abo shoulder height.
○ Use ext caution when felling, and do not use the saw in a nose-
high position or above shoulder height.
CHAIN CA
The chain cat is locat on the po head just below the chain
to fur prevent the possibilit of a
broken chain striking the chain
saw user
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Do not stand in-line with chain when cutting.
BASIC TE FO MAKING FE LIMBING AND
BUCKING CUTS
The intention of the fo information is to provide you with the
general introduction to wood cut t
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○ This information does not cover all speci fi c situations, which
may depend on diff erences in ter vege kind of woo
form and size of trees, etc. Consult your servicing dealer
fores agent or local forest schools for advic on specifi c
wood problems in your area. This will
make your wo
more effi cient and safer
○ Avoi cutting in adverse weather conditions, such as dense fog,
heavy rain, bitter cold, high winds, etc.
Adver weath is often tiring to work in and creates po
dangerous conditions such as slippery ground.
High winds may fo the tree to
fa in an unexpected direction
causing property damage or personal injury.
CAUTI
Never use a chain saw to pr or for any purpose for which it is no
intended.
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○ Avoi stumbling on obstacles such as stumps, roots, rocks,
branches and fa trees. Wat out for holes and ditches. Be
ext cautious when workin on slopes or unev ground.
Shut off the saw when moving from one work place to another
Always cut at wide open throttle. A slow
moving chain can easily
catch and force the saw to jerk.
○ Never use the sa with only one hand.
Yo cannot control the saw properly and you may lose control
and injure you severely
Kee the saw body close to your body to improve control and
reduce strain.
When cutting
with the bottom part of the chain the reactive
force will pull the saw away from yo towa the wo you are
cutting.
The sa will control the feeding speed and sawdust will be
directed towards you. (Fig. 19 )
○ When cutting with the upper par of the chain the
reac for
will push the saw towar you and away from the woo yo are
cutting. (Fig. 20 )
○ There is a risk of kickback if the saw is pushed far enough so that
you begin to cut with the nose of the bar
The safest cutting method is to
cut with the bottom par of the
chain. Sawing with the upper part makes it much more di ffi cult to
control the saw and increases the risk of kickback.
○ In case the chain lock immediat release the throttle le
If the throttle lever kee rotating at high speed with
the chain
locked, the clutch will overhe causing trouble
NOTE
Always keep the spiked bumper face to a tree, because the
chain may suddenly be drawn into a tree.
FELLING
Felling is more than cutting down a tree. Yo must also bring it down
as near to an intended place as possible without
damaging the tree
or anything else
Before felling a tree carefully consider all conditions which ma
eff ect the intended direction, such as:
Angle of the tree. Shape of the cr Sno load on the crown.
Wind conditions. Obstacles within tree range (e.g other trees
power lines, roads, buildings, etc.)
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○ Alwa observe the general conditions of the tree. Look for
decay and rot in the trunk which will make it more likely to snap
and start to fall be you expec it.
○ Look for dry branches, which may break and hit you when you
are working.
Always kee animals
and people at least twice the tree length
away while f Clear away shrubs and branches from around
the tree.
Prepare a path of retreat away from the felling direction.
BASIC RULES FOR FELLING TREES
Normally the felling consists of two main cutting operations, notching
and mak the felling cut. Star
making the upper notch cut on the
side of the tree facing the feeling direction. Look through the ker as
you saw the lower cut so you do not saw too deep into the trunk. The
notch should be deep enough to create a hinge of su ffi cient width
and
strength. The notch opening should be wide enough to dire
the fall of the tree as long as possible. Saw the felling cut from the
other side of the tree between one and two inches (3 cm) above
the edge of the not (Fig. 21 )
20. Felling direction
21. 45° minimum
notch opening
22. Hinge
23. Felling cut
Never saw completely through the trunk. Always leave a hinge
The hinge guides the tree. If the trunk is completely cut through, you
lose control over the felling direction.
Insert a we or a felling lever in the cut we before the tree
becomes unstable and
st to move. This will prevent the guide
bar from binding in the felling cut if yo have misjudged the falling
direction. Make sure no people ha come into the range of the
falling tree before you push it over.
FELLING CUT TRUNK DIAMETER MORE THAN TWICE GUIDE
BAR LENGTH
Cut
a large, wide notch. Then cut a re into the center of the
notch. Always leave a hinge on both sides of the center cut. (Fig. 22 )
Complete the f cut by sawing around the trunk as in the Fig. 23.
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These methods are ex dangerous because they involve
the use of the nose of guide bar and can result in kickback.
Only properly trained pro should attempt these
techniques.
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