Efco Power MTT 3600, Инструкция оператора

Страница: 14 / 86

10
en
GB
F
D
E
NL
P
GR
TR
CZ
SK
RUS
UK
PL
H
LV
EST
LT
RO
· Before you start the engine, make sure the saw
chain is not contacting any object. Never try to
start the saw when the guide bar is in a cut.
· Shut off the engine before setting down the
saw. Do not leave the engine running
unattended.
· As an additional safety precaution, apply the
chain brake prior to setting down the saw.
· Only use the chain saw in well-ventilated
places, do not operate the chain saw in
explosive or flammable atmospheres or in
closed environments. Beware of carbon
monoxide poisoning.
· Do not operate saw from a ladder. Always cut
in a safe position.
· Do not put pressure on the saw at the end of
the cut. Applying pressure can cause you to
lose control when the cut is completed.
· Do not cut near electric cables.
· Keep the handles dry, clean, and free of oil or
fuel mixture.
· When the chain saw is running, grip the front
handle firmly with your left hand and the back
handle with your right hand.
· When cutting a limb that is under tension, be
alert for springback so you will not be struck
when the tension in the wood fibre is released.
· Take great care when cutting small branches or
shrubs which can block the chain, be thrown
back towards you or cause you to lose your
balance.
· Never cut with the chain saw above shoulder
height.
· Never start up the chain saw without the chain
cover fitted.
Precautions Against Kickback
WARNING: Avoid kickback which can
result in serious injury. Kickback is the
backward, upward or sudden forward motion
of the guide bar occurring when the saw chain
near the upper tip of the guide bar contacts
any object such as a log or branch, or when
the wood closes in and pinches the saw chain
in the cut. Contacting a foreign object in
the wood can also result in loss of chain saw
control.
· Rotational Kickback can occur when the
moving chain contacts an object at the upper
tip of the guide bar. This contact can cause the
chain to dig into the object, which stops the
chain for an instant. The result is an extremely
fast, reverse reaction which kicks the guide bar
up and back toward the operator (Fig. 15).
· Pinch-Kickback can occur when the wood
closes in and pinches the moving saw chain in
the cut along the top of the guide bar and the
saw chain is suddenly stopped. This sudden
stopping of the chain results in a reversal of the
chain force used to cut wood and causes the
saw to move in the opposite direction of the
chain rotation. The saw is driven straight back
toward the operator.
· Pull-In can occur when the moving chain
contacts a foreign object in the wood in the
cut along the bottom of the guide bar and the
saw chain is suddenly stopped. This sudden
stopping pulls the saw forward and away from
the operator and could easily cause the
operator to lose control of the saw.
Avoid Pinch-Kickback:
· Be extremely aware of situations or
obstructions that can cause material to pinch
the top of or otherwise stop the chain.
· Do not cut more than one log at a time.
· Do not twist the saw as the bar is withdrawn
from an undercut when bucking.
Avoid Pull-In:
· Always begin cutting with the engine at full
speed and the saw housing against wood.
· Use wedges made of plastic or wood. Never
use metal to hold the cut open.
Reduce the Risk of Kickback
Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise which
contributes to accidents.
· Never let the moving chain contact any object
at the tip of the guide bar.
· Keep the working area free from obstructions
such as other trees, branches, rocks, fences,
stumps, etc. Eliminate or avoid any obstruction
that your saw chain could hit while you are
cutting through a particular log or branch.
· Keep your saw chain sharp and properly
tensioned. A loose or dull chain can increase
the chance of kickback occurring. Follow
manufacturer’s chain sharpening and
maintenance instructions. Check tension at