Homelite UT10510 Operator's Manual page 18

4. Make the backcut level and horizontal, and at a mini-
mum of 2 inches (5 cm) above the horizontal cut of the
notch.
Note: Never cut through to the notch. Always leave a
band of wood between the notch and back cut (approxi-
mately 2 inches (5 cm) or 1/10 the diameter of the tree).
This is called "hinge" or "hingewood". It controls the fall
of the tree and prevents slipping or twisting or shoot-
back of the tree off the stump.
On large diameter trees, stop the back cut before it is
deep enough for the tree to either fall or settle back on
the stump. Then insert soft wooden or plastic wedges
into the cut so they do not touch the chain. Drive
wedges in, little by little, to help jack the tree over.
When bucking or felling with a wedge, it may be
necessary to remove the SAFE-T-TIP anti-kickback
device to allow the bar to be drawn through the cut.
After you complete the cut, reinstall the tip immediately.
5. As tree starts to fall, stop the chain saw and put it down
immediately. Retreat along the cleared path, but watch
the action in case something falls your way.
WARNING:
Never cut through to the notch when making a back
cut. The hinge controls the fall of the tree, this is the
section of wood between the notch and backcut.
OPERATION
BACK CUT
BACK CUT
WEDGE
Page 18
HINGE
2" (5 CM) OR 1/10 DIA
2" (5 CM)
NOTCH -
APPROX. 1/3
DIAMETER OF
TRUNK
Fig. 25
HINGE
Fig. 26
Fig. 27