Husqvarna 137 - Manual (Page 11)

11
TYPES OF CUTTING USED FOR
BUCKING
WARNING:
If saw becomes pinched
or hung in a log, 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 until the
saw can be removed easily. Restart 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 log
with the bottom of the saw against the log.
When overcutting use light downward pres-
sure.
Overcutting Undercutting
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 control.
The saw will tend to push back toward you.
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 the log. The compression side of
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 cut
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 from pinching. See il-
lustrations for cutting logs with a compres-
sion side.
BUCKING USING A LOG OR
SUPPORT STAND
S Remember your first cut is always on the
compression side of the log. (Refer to the il-
lustrations below for your first and second
cut)
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
Using a log for support
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 ob-
jects at the nose of the guide bar when limb-
ing or pruning. Allowing such contact can re-
sult 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.