Ryobi P542 Manuel d'utilisateur télécharger pdf (Page 18)

18 - English

OPERATION

LIMBING

See Figure 20.

Limbing is removing branches from a fallen tree.

 Work slowly, keeping both hands on the chain

saw with a firm grip. Always make sure your

footing is secure and your weight is distributed

evenly on both feet.

 Leave the larger support limbs under the tree to

keep the tree off the ground while cutting.

 Limbs should be cut one at a time. Remove the

cut limbs from the work area often to help keep

the work area clean and safe.

 Branches under tension should be cut from the

bottom up to avoid binding the chain saw.

 Keep the tree between you and the chain saw

while limbing. Cut from the side of the tree

opposite the branch you are cutting.

PRUNING

See Figure 21.

Pruning is trimming limbs from a live tree.

 Work slowly, keeping both hands on the chain

saw with a firm grip. Always make sure your

footing is secure and your weight is distributed

evenly on both feet.

 Do not cut from a ladder, this is extremely dan-

gerous. Leave this operation for professionals.

 Do not cut above chest height as a saw held

higher is difficult to control against kickback.

 When pruning trees it is important not to make

the finishing cut next to the main limb or trunk

until you have cut off the limb further out to

reduce the weight. This prevents stripping the

bark from the main member.

 Underbuck the branch 1/3 through for your first cut.

 Your second cut should overbuck to drop the

branch off.

 Now make your finishing cut smoothly and

neatly against the main member so the bark will

grow back to seal the wound.

WARNING:

If the limbs to be pruned are above chest height,

hire a professional to perform the pruning.

SPRINGPOLES

See Figure 22.

A springpole is any log, branch, rooted stump, or

sapling which is bent under tension by other wood

so that it springs back if the wood holding it is cut

or removed. On a fallen tree, a rooted stump has

a high potential of springing back to the upright

position during the bucking cut to separate the log

from the stump. Watch out for springpoles, they

are dangerous.

WARNING:

Springpoles are dangerous and could strike the

operator, causing the operator to lose control

of the chain saw. This could result in severe or

fatal injury to the operator.

FINISHING CUT

FIRST CUT

1/3 DIAMETER

SECOND CUT

LOAD

Fig. 21

SPRINGPOLE

Fig. 22

Fig. 20

CUT LIMBS ONE AT A TIME AND LEAvE SUPPORT LIMBS

UNDER TREE UNTIL LOG IS CUT

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 75 76

Commentaires sur ces manuels

Pas de commentaire

Ryobi P542 Manuel d'utilisateur Page 18

Commentaires sur ces manuels

Produits connexes et manuels pour Outil à essence Ryobi P542