Remington BS188A Manuel du propriétaire télécharger pdf (Page 13)

CHAIN SAW INFORMATION

Felling Procedure

A) Felling Notch

A properly placed felling notch will deter-

mine direction tree will fall. Place felling

notch on side of tree in direction you want

tree to fall (see Figure 15).

Follow directions below to create a felling

notch.

1. Make lower notch cut as close to

ground as possible. Hold saw so guide

bar is horizontal. Cut 1/3 the diameter

of tree trunk (see Figure 15). Note:

Always make this horizontal lower

notch cut first. If you make this cut

second, tree can pinch chain or guide

bar.

2. Start upper notch cut the same distance

above first cut as first cut is deep.

Example: If lower notch cut is eight

inches deep, start upper notch cut eight

inches above it. Cut downward at 45°

angle. The upper notch cut should meet

end of lower notch cut (see Figure

15).

3. Remove tree trunk wedge created by

notching cuts,

Direction of Fall

2" T

3rd Cut -

Felling Cut

,'1 st Cut -

] Lower

2" i Notch

/

/

Figure 15 - Felling A Tree

B) Felling Cut

1. Make felling cut two inches higher than

lower notch cut and on opposite side of

tree (see Figure 15). Keep telling cut

parallel to lower notch cut.

2. Cut towards notch.

3. As felling cut nears hinge, tree should be-

gin to fall. Note: If needed, drive wedges

into felling cut to control direction of fall.

If tree settles back and pinches chain,

drive wedges into felling cut to remove

saw. Only use wedges made of wood,

plastic, or aluminum. Never use wedge

made of steel. This could cause kickback

and damage to chain.

4. When tree begins to fall, quickly

• remove saw from telling cut

• release trigger to turn saw off

• put saw down

• exit area using retreat path

a'k

WARNING: Do not cut all the

way through tree. Leave about

two inches of tree diameter uncut

directly behind felling notch (see

Figure 15). This uncut portion acts

as a hinge. The hinge helps keep

tree from twisting and falling in

wrong direction.

_lb WARNING: Be alert for failing

overhead limbs. Watch your footing

while exiting area.

LIIVIBING A TREE

WARNING: Avoid kickback.

Kickback can result in severe injury

or death. See Kickbackto avoid risk

of kickback.

_IL WARNING: When cutting limb

that is under tension, use extreme

caution. Be alert for wood spring-

ing back. When wood tension is

released, limb could spring back

and strike operator causing severe

injury or death.

Limbing is removing branches from a fallen

tree. Make sure your fk)oting is firm. Keep

feet apart. Divide your weight evenly on both

feet. Do not remove larger limbs under tree

that support log off ground. Remove each

limb with one cut (see Figure 16). Clear cut

limbs from work area often. This will help

maintain a sate work area.

Make sure you start your cut where limb

will not pinch saw during cutting. To avoid

pinching, start cut on freely hanging limbs

from above limb. Start cut on limbs under

tension from under limb. If pinch occurs, turn

saw off, lift limb, and remove saw.

Figure 16- Limbing A Tree

iiiiiiiiiZ

iiiiiiiiiii i!i

iiii@

iiiiiiZll¸

13 www. remingtonpowertoo/s, cam

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 46 47

Commentaires sur ces manuels

Pas de commentaire