Poulan 1975 - Manual (Page 12)

Hinge holds tree on stump and helps
control fall
NOTE: Before felling cut is complete, use
wedges to open the cut if necessary to
control the direction of fall. To avoid kickback
and chain damage, use wood or plastic
wedges, but never steel or iron wedges.
• Be alert to signs that the tree is ready to
fail: cracking sounds, widening of the fell­
ing cut, or movement in the upper
branches.
• As tree starts to fall, stop saw, put it down,
and get away quickiy on your planned re­
treat path.
• DO NOT cut down a partialy faien tree with
your saw. Be extremely cautious with par­
tially fallen trees that may be poorly sup­
ported. When a tree doesn't fall completely,
set the saw aside and pul! down the tree witfi
a cable winch, block and tackle, or tractor.
CUTTING A FALLEN TREE
(BUCKING)
Bucking is the term used for cutting a fallen
tree to the desired iog size.
^WARNING: Do not stand on the log
being out. Any portion can roll causing loss
of footing and control. Do not stand downhill
of the log being out
IMPORTANT POINTS
• Cut only one iog at a time.
• Cut shattered wood very carefully; sharp
pieces of wood could be flung toward opera­
tor.
• Use a sawhorse to cut small logs. Never
allow another person to hold the log while
cutting and never hold the iog with your leg
or foot.
• Do not cut in an area where logs, limbs,
and roots are tangled such as In a blown
down area. Drag the logs into a clear area
before cutting by pulling out exposed and
cleared logs first.
TYPES OF CUTTING USED FOR
BUCKING
A WARNING: If saw becomes
pinched or hung in a iog, don't try to force it
out. You can lose control of the saw resulting
in injury and/or damage to the saw. Stop the
saw, drive a wedge of plastic or wood into the
cut untli the saw can be removed easiiy. Re­
start the saw and carefully reenter the cut. To
avoid kickback and chain damage, do not
use a metal wedge. Do not attempt to restart
your saw when it is pinched or hung in a log.
Use a wedge to remove pinched saw
■
Turn saw OFF and use a plastic or
wooden wedge to force cut open.
Overcutting begins on the top side of the iog
with the bottom of the saw against the log.
When overoutting use tight downward pres­
sure.
\
I ' -
\^.\^Overcuttmg ^
V L. "¿J
■ o
o
Undercutting C
Undercutting Involves cutting on the under­
side of the log with top of saw against the log.
When undercutting use light upward pres­
sure. Hold saw firmly and maintain controi.
The saw will tend to push back toward you.
A\
»WARNING: Never turn saw upside
down to undercut. The saw cannot be con-
tfolied in this position.
Always make your first cut on the compres­
sion side of the log. The compress ion side of
the log is where the pressure of the log’s
weight is concentrated.
First out on compression side of i
Second cut
Second cut
First cut on compression side of log
BUCKING WITHOUT A SUPPORT
• Overout through 1 /3 of the diameter of the
log.
• Roil the log over and finish with a second
overcut.
• Watch for logs with a compression side to
prevent the saw from pinching. See il-
iustrations for cutting logs with a compres­
sion side.
BUCKING USING A LOG OR
SUPPORT STAND
• Remember your first cut is always on the
compression side of the log.
(Refer to the illustrations below for your
first and second cut)
• Your first out should extend 1/3 of the
diameter of the log.
• Finish with your second cut.
12