Hitachi CS33ET Instrucciones De Seguridad Y Manual De Instrucciones página 11

Never saw c ompletely through the t runk. Always leave ahinge.
The h inge guides the t ree. ifthe t runk is completely cut through,
you lose control over the f elling direction.
insert a wedge or a felling lever in the c ut well before the t ree
becomes unstable and starts to move. This will prevent the g uide
bar from b inding in the f elling cut ifyou h ave misjudged the f alling
direction. Make sure no people have come into t he r ange of t he
falling tree before you push itover.
FELLING CUT, TRUNK DIAMETER MORE THAN TWICE GUIDE
BAR LENGTH
Cut a large, wide notch.Then cut a recess into the center of the
notch. Always leave a hinge on both sides of the center cut.
(Fig. 19)
Fig. 19
Complete the felling cut by sawing around the trunk as in the
Fig. 20.
Fig. 20
/!\ WARNINGI
These methods are extremely dangerous because they involve
the use of the nose of guide bar and can result in kickback.
Only properly trained professionals should attempt these
techniques.
LIMBING
Limbing is removing the branches from a feller tree.
English
Stand on the left side of the trunk. Maintain a secure footing and
rest the saw on the trunk. Hold the saw close to you so that you are
in full control of it. Keep well away from the chain. Move only when
the trunk is between you and the chain. Watch out for spring back
of limbs under tension.
LIMBINGTHICK BRANCHES
When limbing thick branches, the guide bar may get pinched
easily. Branches under tension often snap up, so cut troublesome
branches in small steps. Apply the same principles as for cross
cutting.Think ahead and be aware of the possible consequences of
all your actions.
CROSS CUTTING/BUCKING
Before starting to cut through the log, try to imagine what is going
to happen. Look out for stresses in the log and cut through it in
such a manner that the guide bar will not get pinched.
CROSS CUTTING LOGS, PRESSURE ONTOP
Take a firm stance. Begin with an upper cut. Do not cut too deeply,
about 1/3 of the log diameter is enough. Finish with a bottom cut.
The saw cuts should meet. (Fig. 22)
29
27
32 LLJ
27. Relieving cut
28. Cross cut
29. Pressure on top
30. Pressure side
31. Tension side
32. Relative depth of saw cuts
Fig. 22
THICK LOG, LARGER THAN GUIDE BAR LENGTH
Begin by cutting on the opposite side of the log. Pull the saw
towards you followed by previous procedure. (Fig. 23)
A\WARNING!
A majority of kickback accidents occur during iimbing.
Do not use the nose of the guide bar. Be extremely cautious
and avoid contacting the log, other limbs or objects with the
nose of the guide bar. Be extremely cautious of limbs
under tension,They can spring back towards you and cause
loss of control resulting in injury. (Fig. 21)
Fig. 21
Fig. 23
if the log is lying on the ground make a boring cut to avoid cutting
into the ground. Finish with a bottom cut. (Fig. 24)
/:-,,
:,. :,.
(:i:.:/-2 :_":'_J 1 _
=='=_3
Fig. 24
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