Oregon CS250 Original Instruction Manual

20
OREGON® CORDLESS TOOL SYSTEM
CHAIN SAW MODEL CS250
OPERATING THE SAW
AF 0513  F/N 547361

)
NOTCHING UNDERCUT
Make the notch / the diameter of
the tree, perpendicular to the
direction of fall. Make the lower
horizontal notching cut first. This will
help to avoid pinching of either the
saw chain or the guide bar when the
second notch is being made (Fig. ).

)
FELLING BACK CUT
Make the felling back cut at least ~ in
( mm) higher than the horizontal
notching cut (Fig. ). Keep the felling
back cut parallel to the horizontal
notching cut. Make the felling back
cut so enough wood is left to act as a
hinge. The hinge wood keeps the tree
from twisting and falling in the wrong
direction. Do not cut through the
hinge.
As the felling cut gets close to the
hinge the tree should begin to fall.
If there is any chance that the tree
may not fall in the desired direction
or it may rock back and bind the saw
chain, stop cutting before the felling
back cut is complete and use wedges
of wood, plastic or aluminum to open
the cut and drop the tree along the
desired line of fall.
When the tree begins to fall, remove
the chain saw from the cut, stop the
motor, put the chain saw down, then
use the retreat path planned. Be alert
for overhead limbs falling and watch
footing.

)
LIMBING A TREE
Limbing is removing the branches
from a fallen tree. When limbing, leave
larger lower limbs to support the log
off the ground. Remove the small
limbs in one cut. Branches under
tension should be cut from the
bottom up to avoid binding the chain
saw (Fig. ).

)
BUCKING A LOG
Bucking is cutting a log into lengths.
It is important to make sure footing is
firm and weight is evenly distributed
on both feet. When possible, the log
should be raised and supported by
the use of limbs, logs or chocks.
NOTCHING UNDERCUT
DIRECTION
OF FALL
NOTCH
FIG. 17
FELLING BACK CUT
FELLING
BACK CUT
HINGE
DIRECTION
OF FALL
NOTCH
2 INCHES
2 INCHES
FIG. 18
TREE LIMBING
LIMB CUT
KEEP WORK OFF GROUND
LEAVE SUPPORT LIMBS UNTIL LOG IS CUT
FIG. 19

Oregon CS250 Specifications

General

Brand	Oregon
Model	CS250
Category	Chainsaw
Language	English