Poulan PLN1514 Manuel d'utilisateur télécharger pdf (Page 11)

3. Log supported on both endsiFirsi,

overbuck 1/3 diameter of log to

avoid splintering.Second, underbuck

to meet first cut and avoid pinching

(Figure 5-30).

NOTE:The best way to hold a log while

bucking is to use a sawhorse,When this

is not possible, the log should be raised

and supported by the limb stumps or by

using supporting iogs.Be sure the log

being cut is securely supported.

5-4.BUCKING USING A

SAWHORSE

For personal safety and ease of cutting,

the correct position for vertical bucking

is essential (Figure 5-4A).

VERTICAL CUTTING:

A. Hold the saw firmly with both hands

and keep the saw to the right of your

body while cutting.

B. Keep the left arm as straight as

possible.

C. Keep weight on both feet.

CAUTION

While the saw is cutting, be sure the

chain and bar are being properly

lubricated.

B

6 - BAR/CHAIN MAINTENANCE

6-1.GUIDE BAR MAINTENANCE

WARNING

Ensure that the power cord is disconn

ected before performing any maintena

nce on your saw.

Proper maintenance of the guide

bar,as explained in this section,Is

essential to keep your saw in good

working order.

GUIDE BAR MAINTENANCE :

Most guide bar problems can be

prevented merely by keeping the chain

saw well maintained

Incorrect filing and non-uniform cutter

and depth gauge settings cause most

guide bar problems, primarily resulting

in uneven bar wear.As the bar wears

unevenly, the rails widen, which may

cause chain clatter and difficulty in

making straight cuts.

Insufficient guide bar lubrication and

operating the saw with a chain that is

TOO TIGHT will contribute to rapid bar

wear (see Section 6-2).

To help minimize bar wear, the

following guide bar maintenance is

recommended.

BAR WEAR- Turn guide bar frequently

at regular intervals (for example, after 5

hours of use), to ensure even wear on

top and bottom of bar.

BAR GROOVES - Bar grooves (or rails

which support and carry the chain)

should be cleaned if the saw has been

heavily used or if the saw chain

appears dirty.Rails should always be

cleaned every time the saw chain is

removed,

OIL PASSAGES- Oil passages at bar

pad should be cleaned to ensure proper

lubrication of the bar and chain during

operation.This can be done using a soft

wire small enough to insert into the oil

discharge hole,

TO CLEAN GUIDE BAR RAILS:

1. Remove sprocket cover, bar and

chain (see Section 3-4).

Using a screwdriver, putty knife, wire

brush or other similar instrument,

dear residue from the rails on the

guide bar.

This will keep the oil passages open

to provide proper lubrication to the

bar and chain (Figure 6-1 A).

Reinstall the bar, chain and bar bolt

retaining nuts, (See Section 3-4).

2,

3,

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6-1A

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