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uiii iiiiiii iii
C. BUCKING
Bucking is the term used for cutting a fallen tree
to the desired log size.
1. IMPORTANT POINTS
a. Cut only one log atatim e.
b. Cut shattered wood very carefully. Sharp
pieces of wood could be flung toward the
operator.
c. Use a sawhorse to cut small logs. Never
allow another person to holdthe logwhile cut-
tingand never holdthelogwith yourlegor foot.
d. Give special attention to logs under strain to
prevent the saw from pinching. Make thefirst
cuton the pressureside to relievethestress on
the log.Figure32.
e. Do not cut in an area where logs, limbs and
roots are tangled such as in a blown down
area. Drag the logsintoa clear area beforecut-
ting by pulling out exposedand cleared logs_
first.
f. Make the f_rst bucking cut 1/3 of the way
through the log and finish with a 2/3 cut on
the opposite side. As the log is being cut, it
wilt tend to bend. The saw can become
pinched or hung inthe log ifyou make the first
cutdeeper than 1/3 ofthediameter ofthe log.
2. TYPES OF CUTTING USED Figure33.
-- Overcutting - begin on the top side of the
log with the spur against the log: exert light
pressure downward.
.- Undercutting - begin on the under sideof the
logwith thetop ofthe sawagainst the log;exert
light pressure upward. During undercutting,
the saw will tend to push back at you. Be pre-
pared for this reaction and hold the saw firmly
tomaintain control.
• AWARNING " _ _I
Never turn the saw upside down to undercut. The
saw cannot be controlled in this position.
_WARNING
If saw becomes pinched or hung in a log, don't try to
force it out. You can lose control ofthe saw resulting
in injury and/or damage to the saw. Stop the saw,
drive a wedge of plastic orwood into the cut until the
saw can be removed easily. Figure 34, 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 ispinched or
hung in a log.
3. BUCKING--WlTHOUTA SUPPORT
a. Overcutwith a 1/3 diametercut.
b. Roll logover and finishwith anovercut.
i i i 111111iii ii iiiii
i 1
ISTCUT
PRESSURESIDE _ 4-_
4-,-- _ 2NDCUT
L
Figure32
UNDERCUT
Figure33
WEDGE USED TO
HOLD CUT OPEN
/
Figure34
I. , .I.-A-.i
|. IstCut : 12ndCutl
US,N a,t
ANOTHER "._,?'_
LOGAS A SUPPORT " _ "
I
Figure35
[,1 B t,I
lst_ 2nd _'_
cut cut c=
Figure36
16
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