Zenoah G455AVS Guide de dépannage télécharger pdf (Page 12)

NOTE:

• Before proceeding to your job, read “For

Safe Operation” section. It is

recommended to first practice sawing

easy logs. This also helps you get

accustomed to your unit.

• It is not necessary to force the saw into

the cut. Apply only light pressure while

running the engine at full throttle.

• Racing the engine with the chain seized in

a cutaway can damage the clutch system.

When the saw chain is caught in the cut,

do not attempt to pull it out by force, but

use a wedge or a lever to open the cut.

■ GUARD AGAINST KICKBACK

• This saw is equipped with a special “low

kickback” chain that greatly reduces the

severty of kickback should it occur.

• The saw chain has been tested in

accordance with American National

Standard Safety Specifications for

gasoline powered chain saw (ANSI

B175.1 1985) as having an acceptable

low kickback level. On this saw never use

any chain other than those recommended

on page 12 of this manual, or which is not

designated as meeting the ANSI B175.1

kickback levels on this saw.

• Low kickback saw chains are chains

which have met the kickback

requirements of ANSI B175.1 when tested

on the representative samples of chain

saws below 3.8 C.I.D. specified in ANSI

B175.1.

• The guide bar supplied with this saw has

an under 1.2 inch radius sprocket nose

which produces a specific kickback

energy. Never use a bar with a larger

nose radius. Use only those

recommended on page 12.

• The length of bars has a great effect on

kickback. Use only those length as

specified on page 12.

• This saw is also equipped with a chain

brake that will stop the chain in the event

of kickback if operating properly. You

must check the chain brake operation

before each usage by running the saw at

full throttle for 1 or 2 seconds and pushing

the front hand guard forward. The chain

should stop immediately with the engine

at full speed. If the chain is slow to stop or

does not stop then replace the brake band

and clutch drum before use.

• It is extremely important that the chain

brake be checked for proper operation

before each use and that the chain be

sharp in order to maintain the kickback

safety level of this saw. Removal of the

safety devices, inadequate maintenance,

or incorrect replacement of the bar or

chain may increase the risk of serious

personal injury due to kickback.

■ FELLING A TREE

[CAUTION!] When you fell a tree, be sure to

warn your neighboring workers of the

danger.

5. Sawing

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