Poulan PLN3516F Manuel d'utilisateur télécharger pdf (Page 14)

The notch (C) should be deep enough to

create a hinge (F) of sufficient width and

strength. The notch should be wide

enough to direct the fall of the tree for as

long as possible.

WARNING

Never walk in front of a tree that has been

notched.

Make the felling cut (D) from the other side

of the tree and 1.5 - 2.0 inches (3~5 cm}

above the edge of the notch (C)

{Figure 5-1B),

Never saw completely through the trunk.

Always leave a hinge. The hinge guides

the tree. If the trunk is completely cut

through, control over the felling direction is

lost.

insert a wedge or feiling lever in the cut

well before the tree becomes unstable and

starts to move. This will prevent the guide

bar from binding in the feiling cut if you

have misjudged the falling direction. Make

sure no bystanders have entered the range

of the tailing tree before you push it over.

WARNING

Before making the final cut, always

recheck the area for bystanders, animals

or obstacles,

FELLING CUT:

1. Use wooden or plastic wedges (G) to

prevent binding the bar or chain (H) in

the cut. Wedges also control felling

(Figure 5-1C).

2, When diameter of wood being cut is

greater than the bar length, make 2

cuts as shown (Figure 5-1D),

WARNING

As the feiling cut gets dose to the hinge,

the tree should begin to fall. When tree

begins to fall, remove saw from cut, stop

engine, put chain saw down, and leave

area along retreat path (Figure 5-1 A).

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5-1B

5-1C

5-2. LIMBING

Limbing a tree is the process of removing

the branches from a fallen tree. Do not

remove supporting iimbs (A) until after the

log is bucked (cut) into lengths (Figure

5-2A). Branches under tension should be

cut from the bottom up to avoid binding the

chain saw.

WARNING

Never cut tree limbs while standing on tree

trunk.

5-3. BUCKING

Bucking is cutting a fallen log into lengths.

Make sure you have a good footing and

stand uphill of the log when cutting on

sloping ground. If possible, the log should

be supported so that the end to be cut off

is not resting on the ground. If the log is

supported at both ends and you must cut

in the middle, make a downward cut

halfway through the log and then make the

undercut. This will prevent the log from

pinching the bar and chain. Be careful that

the chain does not cut into the ground

when bucking as this causes rapid

dulling of the chain.

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