Husqvarna 235e 236e 240e TrioBrake Chainsaw Owners Manual

WORKING TECHNIQUES
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 will  lead to a kickback. (36)
The following  instructions describe  how to handle  the
commonest  situations you are  likely to encounter  when
using a chain  saw.
Limbing
Cutting with the bottom  edge of the bar, i.e. from the top
of the object downwards,  is known as cutting on the pull
stroke. In this case the chain saw pulls itself towards the
tree and the  front edge of the  chain saw body  rests
naturally on  the trunk when  cutting. Cutting on  the pull
stroke gives  the operator better  control over the  chain
saw and the  position of the kickback  zone.
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.
When limbing  thick branches  you should use  the same
approach  as for cutting.
Cut difficult  branches piece  by piece.
Cutting
WARNING! Never  attempt to  cut logs
while they  are in a pile or  when a couple
of logs are  lying together. Such
procedures  drastically increase  the risk
of kickback which  can result in a serious
or fatal injury.
!
9
Basic cutting technique
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.
WARNING!  Never use a chain  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.
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.
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. (37)
General
Always use full  throttle when  cutting!
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  on the pull stroke.
Cutting from  below = Cutting  on the push stroke.
If it is possible (can  you turn the log?)  stop cutting about 2/
3 of the way  through the log.
Cutting on  the push stroke  increases the risk  of kickback.
See instructions  under the heading  How to avoid kickback.
Turn the log and  finish the cut from  the opposite  side.
The log is supported  at one end. There is a high risk that
Terms
it will split.
Start by cutting  from below (about  1/3 of the way through).
Finish by cutting  from above so  that the two cuts  meet.
The log is  supported at  both ends. There  is a high risk
that the chain  will jam.
Start by cutting  from above (about  1/3 of the way through).
Finish by cutting  from below  so that the two cuts  meet.
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:
Tree felling technique
1
2
3
Make sure  the cutting equipment  will not jam  in the cut.
Make sure  the object you are  cutting will not split.
Make sure  the chain will not  strike the ground  or any
other object  during or after  cutting.
Is there a  risk of kickback?
Do the conditions  and surrounding  terrain affect  how
safely you can  stand and move  about?
IMPORTANT! It takes  a lot of experience  to fell a tree.
Inexperienced users  of chain saws should not fell trees.
Do not attempt  any task that  you feel unsure of!
4
5
Safe distance
The safe distance  between a  tree that is to be  felled and
anyone else  working nearby  is at least 2 1/2 tree  lengths.
Make sure  that no-one else  is in this ”risk zone”  before or
during felling. (38)
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.
Felling direction
The aim is  to fell the tree in a position  where you can  limb
and cross-cut  the log as easily  as possible. You want it to
fall in a location  where you can  stand and move  about
safely.
IMPORTANT!  If the chain jams  in the cut: stop the
engine! Don’t  try to pull the  chain saw free. If you  do
you may be injured  by the chain  when the chain  saw
suddenly breaks  free. Use a lever  to open up the cut
and free the  chain saw.
Once you have decided  which way you want the tree to fall
you must judge  which way the  tree would fall naturally.
Several factors  affect this:
Lean of the  tree
Bend
English – 17
1153140-26
Rev. 2 2010-02-11
Product Specification
CategoriesChainsaw Manuals, Husqvarna Chainsaw Manuals
Tags, , ,
Model Year2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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- 23 pages
Document TypeOperator's Manual
LanguageEnglish
Product BrandHusqvarna, Chainsaw
Document File TypePDF
Publisherhusqvarna.com
Wikipedia's PageHusqvarna
CopyrightAttribution Non-commercial
(1 votes, average: 4 out of 4)
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Husqvarna 235e 236e 240e TrioBrake Chainsaw Owners Manual SKU UPC Model
jcmello on Mar 21, 2014.

Must needed. Should come with Husky.


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