Basic Cutting Technique - Husqvarna 435 Manual De Instrucciones

WORKING TECHNIQUES
log or one piece at a time. Remove the cut pieces to
keep your working area safe. (57)
4 Never use the chain saw above shoumder height
and avoid cutting with the tip of the bar. Never use
the chain saw one-handed! (58)
5 In order to keep control of your saw, always maintain
a firm foothold. Never work on a ladder, in a tree or on
any other insecure support. (59)
6 Always use a fast cutting speed, i.e. full throttle.
7 Take great care when you cut with the top edge of the
bar, i.e. when cutting from the underside of the object.
This is known as cutting with a pushing chain. The
chain tries to push the chain saw back towards the
user. If the saw chain is jamming, the saw may be
pushed back at you. (60)
8 Unless the user resists this pushing force there is a
risk that the chain saw will move so far backwards that
only the kickback zone of the bar is in contact with the
tree, which can lead to a kickback. (61)
Cutting with the bottom edge of the bar, i.e. from the
top of the object downwards, is known as cutting with
a pulling chain. In this case the chain saw pulis itself
towards the tree and the front edge of the chain saw
body rests naturally on the trunk when cutting. Cutting
with a pulling chain gives the operator better control
over the chain saw and the position of the kickback
zone. (62)
9 Follow the instructions on sharpening and maintaining
your bar and chain. When you replace the bar and
chain use only combinations that are recommended
by us. See instructions under the headings Cutting
equipment and Technical data.
Basic cutting technique
WARNiNG! Never use a cha!n saw by
holding it with One hand. A chain saw is
not safely Controlled with one hand.
Always have a Secure, firm grip around
the handles with both hands,
Generam
Always use full throttle when cuttingE
Reduce the speed to idle after every cut (running the
engine for too long at full throttle without any load, i.e.
without any resistance from the chain during cutting,
can lead to serious engine damage).
Cutting from above = Cutting with a pulling chain.
Cutting from below = Cutting with a pushing chain.
Cutting with a pushing chain increases the risk of
kickback. See instructions under the heading How to
avoid kickback.
Terms
Cutting = General term for cutting through wood.
Limbing = Cutting branches off a felled tree.
Splitting = When the object you are cutting breaks off
before the cut is complete.
There are five important factors you should consider
before making a cut:
1 Make sure the cutting equipment will not jam in the
cut. (63)
2 Make sure the object you are cutting will not split. (64)
3 Make sure the chain will not strike the ground or any
other object during or after cutting. (65)
4 Is there a risk of kickback? (4)
5 Do the conditions and surrounding terrain affect how
safely you can stand and move about?
Two factors decide whether the chain will jam or the object
that you are cutting will split: the first is how the object is
supported before and after cutting, and the second is
whether it is in tension.
In most cases you can avoid these problems by cutting in
two stages; from the top and from the bottom.You need to
support the object so that it will not trap the chain or split
during cutting.
free the chain saw.
The following instructions describe how to handle the
common situations you are likely to encounter when using
a chain saw.
Limbing
When limbing thick branches you should use the same
approach as for cutting.
Cut difficult branches piece by piece. (66)
Cutting
_tempt tocat logs
c;up'e
! _ of Io_in_her. Such "
| procedure_ly increase the risk
| _esult in a serious
or fatal injury.
If you have a pile of logs, each log you attempt to cut
should be removed from the pile, placed on a saw horse
or runners and cut individually.
Remove the cut pieces from the cutting area. By leaving
them in the cutting area, you increase the risk for
inadvertently getting a kickback, as well as increasing the
risk of losing your balance while working. (67)
The log is lying on the ground.There is little risk of the
chain jamming or the object splitting. However there is a
risk that the chain will touch the ground when you finish
the cut. (68)
Cut all the way through the log from above. Avoid letting
the chain touch the ground as you finish the cut. Maintain
full throttle but be prepared for what might happen. (69)
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