Husqvarna 137, 142 Chainsaw User Manual


 
12
WARNING: Never turn saw upside
down to undercut. The saw cannot be con-
trolled in this position.
Always make your first cut on the compres-
sion side of thelog. Thecompression sideof
the log is where the pressure of the log’s
weight is concentrated.
Second cut
First cut on compression side of log
First cut on compression side of log
Second cu t
BUCKING WITHOUT A SUPPORT
S Overcut through 1/3 of the diameter of the
log.
S Roll the log over and finish with a second
overcut.
S Watch for logs with a compression side to
prevent the saw f rom pinching. S ee illustra-
tion for cutting logs with a compression side.
BUCKING USING A L OG OR
SUPPORT STAND
S Remember your first cut is always on the
compressions side of thelog. ( Refer tothe
illustration below for your first and second
cuts).
S Your first cut should extend
1/3 of the
diameter of the log.
S Finish with your second cut.
1
st
Cut
2
nd
Cut
Usingalogforsupport
2
nd
Cut
1
st
Cut
1
st
Cut
2
nd
Cut
Using a support stand
1
st
Cut
2
nd
Cut
LIMBING AND PRUNING
WARNING: Be alert for and guard
against kickback. Do not allow the moving
chain to contact any other branches or objects
at the nose of the gui de bar when limbing or
pruning. Allowing such contact can result in
serious injury .
WARNING: Never climb into a tree
to limb or prune. Do not stand on ladders,
platforms, a log, or in any position which can
cause you to lose your balance or control of
the saw.
IMPORTANT POINTS
S Work slowly, keeping both hands firmly
gripped on the saw. Maintain secure foot-
ing and balance.
S Watch out for springpoles. Springpoles
are small size limbs which can catch the
saw chain and whip toward you or pull you
off balance. Use extreme caution when
cutting small size limbs.
S Be alert for springback. W atch out for
branches that are bent or under pressure.
Avoid being struck by the branch or the
saw when the tension in the wood fibers is
released.
S Keep a clear work area. Frequently clear
branches out of the way to avoid tripping
over them.
LIMBING
S Always limbatreeafter it i s cutdown. Only
then can limbing be done safely and prop-
erly.
S Leave the larger limbs und erneath the
felled tree to support the tree as you work.
S Start atthe base ofthe felled treeand work
toward the top, cutting branches and
limbs. Remove small limbs with one cut.
S Keep the tree between you and the chain.
Cut from the side of the tree opposite the
branch you are cutting.
S Remove larger, supporting branches with
thecuttingtechniques described inBUCK-
ING WITHOUT A SUPPORT.
S Always use an overcut to cut small and
freely hanging limbs. Undercutting could
cause limbs to fall and pinch the saw.
PRUNING
WARNING: Limit pruning to limbs
shoulder height or below. Do n ot cut if
branches are higher thanyour shoulder. Get
a professional to do the job.