21
100642 - ChAiNSAw
OPERATiON
Second cut
First cut (1/3 diameter)
Load
Log supported
on one end
Figure 16
Second cut
First cut (1/3 diameter)
Load
Log supported
on two ends
Figure 17
Overbucking
Figure 18
Underbucking
Figure 19
Wedge
Figure 20
Pruning
wARNiNG
When carrying a chainsaw with engine running, always engage
the chain brake.
wARNiNG
Do not cut above shoulder height. Use a pole saw to cut limbs
above shoulder height or hire a professional. Do not operate
the chainsaw in a tree or on a ladder unless specifically trained
to do so.
wARNiNG
Falling branches can cause serious injury. Always wear
appropriate head protection. Plan an escape route away from
falling limbs. Do not position any body parts directly below the
limb when cutting.
Pruning is the process of cutting limbs from a living tree.
1. Make the first cut approximately 6 inches (15 cm) from the
tree trunk. Cut upward, from the underside of the limb.
Use the top of the guide bar to make this cut. Cut a third of
the way through the diameter of the limb (Fig. 21).
2. Make the second cut 2 - 4 inches (5 - 10 cm) farther out on
the limb. Cut downward, from the top of the limb. Use the
bottom of the guide bar to make this cut. Cut completely
through the limb (Fig. 21).
3. Make the third cut as close to the tree trunk as possible.
Cut upward, from the underside of the limb stub. Use the
top of the guide bar to make this cut. Cut a third of the way
through the diameter of the limb (Fig. 21).
4. Make the fourth cut directly above the third cut.
Cut downward, from the top of the limb stub. Use the bottom
of the guide bar to make this cut. Cut completely through the
limb stub to meet the third cut (Fig. 21). This will remove the
limb stub.
