Qualcast QG-PC 4645 Original Operating Instructions page 19

Felling cut
1. Use wooden or plastic wedges (A) to prevent
binding the bar or chain (B) in the cut.
Wedges also control felling (Fig. 22).
2. When diameter of wood being cut is greater
than the bar length, make 2 cuts as shown
(Fig. 23).
Warning: As the felling cut gets close to the
hinge, the tree should begin to fall. When tree
begins to fall, remove saw from cut, stop engine,
put chain saw down, and leave area along
retreat path (Fig. 20).
Limbing
Limbing a tree is the process of removing the
branches from a fallen tree. Do not remove
supporting limbs (A) until after the log is bucked
(cut) into lengths (Fig. 24). Branches under
tension should be cut from the bottom up to
avoid binding the chain saw.
Warning: Never cut tree limbs while standing
on tree trunk.
Bucking
Bucking is cutting a fallen log into lengths. Make
sure you have a good footing and stand uphill of
the log when cutting on sloping ground. If
possible, the log should be supported so that the
end to be cut off is not resting on the ground. If
the log is supported at both ends and you must
cut in the middle, make a downward cut halfway
through the log and then make the undercut. This
will prevent the log from pinching the bar and
chain. Be careful that the chain does not cut into
the ground when bucking as this causes rapid
dulling of the chain. When bucking on a slope,
always stand on the uphill side.
1. Log supported along entire length: Cut
from top (overbuck), being careful to avoid
cutting into the ground (Fig. 25).
2. Log supported on 1 end: First, cut from
bottom (underbuck) 1/3 diameter of log to
avoid splintering. Second, cut from above
(overbuck) to meet first cut and avoid
pinching (Fig. 26).
Helpline No. UK 0151 649 1500 / IRE 189 094 6244
3. Log supported on both ends: First, overbuck
1/3 diameter of log to avoid splintering.
Second, underbuck to meet first cut and
avoid pinching (Fig. 27).
Note: The best way to hold a log while bucking is
to use a sawhorse. When this is not possible, the
log should be raised and supported by the limb
stumps or by using supporting logs. Be sure the
log being cut is securely supported.
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Bucking using a sawhorse (Fig. 28)
For personal safety and ease of cutting, the
correct position for vertical bucking is essential
(Fig. 28).
A. Hold the saw firmly with both hands and
keep the saw to the right of your body while
cutting.
B. Keep the left arm as straight as possible.
C. Keep weight on both feet.
Caution: When working with the saw, always
make sure that the saw chain and chain bar are
sufficiently lubricated.
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