Efco MT4400 Instruction Manual download pdf (Page 9)

SAFETY RULES

• 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 (Fig. 12). Beware of carbon monoxide

poisoning.

• Do not operate saw from a ladder or in a tree. Always cut from

a firm-footed and 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

(Fig. 10).

• 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 (Fig. 13).

• 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. 14-15 and Fig. 16 page 10).

• 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.

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Efco MT4400 Instruction Manual Page 9

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