Remington RM4040 Manuel De L'utilisateur page 18

CUTTING PROCEDURE BASICS
1. Start the unit. Refer to Starting Instructions in the Starting and
Stopping section.
2. Make sure that oil is flowing onto the guide bar and saw chain. A
small spray should be visible. When using the unit for the first
time, allow 30-60 seconds for the oil to begin flowing.
3. Press the unit against the wood and maintain a firm, steady
pressure through most of the cut. Do not put pressure on the
unit at the end of the cut.
4. Keep the unit running through the entire cut.
5. Do not try to force the saw through the wood. Allow the saw
chain to do the cutting. Exert only light pressure. Forcing the cut
could result in damage to the unit or personal injury.
6. Release the trigger as soon as the cut is completed. Allow the
saw chain to come to a complete stop. The saw chain, guide bar
and motor may experience unnecessary wear if the unit is run
without a cutting load.
FELLING: SAFETY
Felling is the process of cutting down a tree. Follow these safety
precautions to reduce the risk of serious injury, property damage
and damage to electrical lines:
• Do not fell trees with an extreme lean. Do not fell trees with
rotten limbs, loose bark or hollow trunks. Have these trees
pushed or dragged down with heavy equipment.
• Do not cut trees near buildings or electrical lines. Leave these
operations for professionals. If a felled tree does contact an
electrical line, notify the utility company immediately.
• Check the tree for damaged or dead branches that could fall
and cause serious injury.
• Remove dirt, stones, loose bark, nails, wire and other
obstructions from the portion of the tree that will be cut.
• When bucking and felling operations are performed by two or
more persons in the same general area, they should be
separated from each other by a distance of at least twice the
height of the tree to be felled.
• Consider the force and direction of the wind. Consider the lean
and balance of the tree. Consider the location of large branches.
All of these factors influence the direction that the tree will fall. Do
not try to fell a tree in a direction other than its natural fall line.
• Do not fell trees during periods of precipitation or high winds.
• Determine a safe and expedient escape route. Clear the area
around the tree and make sure there are no obstructions
blocking the escape route. Establish a 90º corridor of escape,
approximately 135º from the line of fall (Fig. 22).
• Stay uphill from the tree; it will most likely roll or slide after it falls.
FELLING: PROCEDURE
Small trees, up to 6 - 7 inches (15 - 18 cm) in diameter, are usually
felled in a single cut. Larger trees require a sequence of two cutting
operations: a notched undercut followed by a felling back cut. It
may also be necessary to remove buttress roots.
Step 1: Removing Buttress Roots
Buttress roots are large roots that extend above the ground and
help support the tree. If the tree has large buttress roots that might
impede the felling process, follow these steps to remove them:
Path of Safe
90°
Retreat
18
135º From Planned
Line of Fall
Planned
Line of Fall
135º From Planned
Line of Fall
Fig. 22
Second Cut
Buttress Root
First Cut
Fig. 23