EarthWise CVP41810 Manual Del Operador página 9

PROPER CUTTING STANCE
Weight should be balanced with both feet on solid ground.
Keep left arm with elbow locked in a ―straight arm‖ position to
withstand any kickback force when using pole saw. Your right hand
should be gripping the handle and positioned firmly against body for
added support.
Your body should always be to the left of the chain line.
BASIC CUTTING PROCEDURE
Do not use the pole saw to fell saplings. Use the chain saw without
the pole attachment.
Small trees up to 6-7 inches in diameter are usually cut in a single
cut. Large tree limbs require notch cuts. Notch cuts determine the
direction the tree will fall.
WARNING: If the tree limb starts to fall in the wrong direction, or if
the saw gets caught or hung up during the fall, leave the saw and
save yourself.
WARNING: Periodically glance at the top of the tree during the
back-cut to assure the tree limb is going to fall in the desired direc-
tion.
Practice cutting a few small limbs using the following technique to
get the ―feel‖of using the saw before you begin a major sawing
operation.
Take the proper stance in front of the wood with the saw in the
―off‖position.
Squeeze the trigger and let the chain accelerate to full speed before
entering the cut.
Always hold the saw firmly with both hands.
Keep the unit running the entire time you are cutting, maintain a
steady speed.
Allow the chain to cut for you; exert only light downward pressure. If
you force the cut, damage to the bar, chain, or unit can result in
serious injury.
Do not put pressure on the saw at the end of the cut.
When felling the top of a small tree,keep everyone a safe distance
from the cutting area.During felling operations, the safe distance
should be at lease twice the height of the largest trees in the felling
area.If the tree makes contact with any utility line, the utility company
should be notified immediately.
Always cut with both feet on solid ground to prevent being pulled or
knocked off balance.
Do not extend arms above shoulder level when operating the pole saws.
Do not cut above chest height when using the chain saw.
FELLING A TREE
When bucking and felling operations are being performed by two or
more persons, at the same time, the felling operation should be
separated from the bucking operation by a distance of at least twice
the height of the tree being felled. Trees should not be felled in a
manner that would endanger any person, strike any utility line or
cause any property damage. If the tree does make contact with any
utility line, the utility company should be notified immediately.
OPERATING AND INSTRUCTIONS
WARNING: Check the tree for damaged or dead branches that could fall
and hit you during felling.
Before any cuts are started, pick your escape route (or routes in case
the intended route is blocked); clear the immediate area around the tree
and make sure there are no obstructions in your planned path of retreat.
A clear path of safe retreat is approximately 135 degrees from planned
line of fall. The retreat path should extend back and diagonally to the
rear of the expected line of fall.(Fig. 26)
RETREAT
PLANNED
LINE OF FALL
RETREAT
FIG. 26
Before felling is started, consider the force and direction of the wind, the
lean and balance of the tree, and the location of large limbs. These
things influence the direction in which the tree will fall. Do not try to fell a
tree along the line different from its natural line of fall.
The saw operator should keep on the uphill side of the terrain as the
tree is likely to roll or slide downhill after it is felled.
Remove dirt, stones, loose bark, nails, staples, and wire from the tree
where felling cuts are to be made.
NOTCHED UNDERCUT– Cut a notch about 1/3 diameter of the tree,
perpendicular to the direction of the fall. Make the cuts of the notch so
they intersect at a right angle to the line of fall. This notch should be
cleaned out to leave a straight line. To keep the weight of the wood off
the saw, always make the lower cut of the notch before the upper cut.
WARNING: Do not fell trees during periods of high wind or heavy
precipitation. Wait to do your cutting until the hazard has ended.
WARNING: Do not cut down trees having an extreme lean or large
trees that have rotten limbs, loose bark, or hollow trunks. Have these
trees pushed or dragged down with heavy equipment , then cut them
up.
FELLING BACK-CUT
The back-cut is always made level and horizontal, and at a minimum of
2 inches (5cm) above the horizontal cut of the notch.
Never cut through to the notch. Always leave a band of wood between
the notch and back-cut (approximately 2 inches (5cm) or 1/10 the
diameter of the tree). This is called ― hinge‖ or ―hinge wood‖. It controls
the fall of the tree and prevents slipping or twisting or shoot-back of the
tree off the stump.
This saw is not designed to fell large diameter tree tops, or tree trunks.
9
PLANNED LINE OF FALL
SAFE
ZONE
SAFE
RETREAT
ZONE
PLANNED PATH OF SAFE RETREAT
135° FROM PLANNED LINE OF FALL
SAFE
ZONE