Manual McCulloch Mac742 (page 5 of 17) (English, German, French, Spanish)

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S Mix and pour fuel in an outdoor area on bare

ground; store fuel in a cool, dry, well venti-

lated place; and use an approved, marked

container for all fuel purposes. Wipe up all

fuel spills before starting saw.

S Move at least 10 feet (3 meters) from fuel-

ing site before starting engine.

S T urn the engine off and let saw cool in a

non-combustible area, not on dry leaves,

straw, paper, etc. Slowly remove fuel cap

and refuel unit.

S Storetheunitand fuelin anarea where fuel

vapors cannot reach sparks or open

flames from water heaters, electric motors

or switches, furnaces, etc.

KICKBACK

WARNING: Avoid kickback which

can result in serious injury. Kickback is the

backward,upwardor sudden forwardmotion

of the guide bar occurring when the saw

chain near the upper tip of the guideb arcon-

tacts any object such as a log or branch, or

when the wood closes in and pinches the

saw chain in thecut. Contactinga foreignob-

ject in the wood can also result in loss of

chain saw control.

S Rotational Kickback can occur whenthe

moving chain contacts an object at the up-

per 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 a lightning fast, reverse reaction

which kicks the guide bar up and back to-

ward the operator.

S Pinch-Kickback can occur when the 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 tomovein theoppositedirection ofthe

chain rotation. The saw is driven straight

back toward the operator.

S 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:

S Be extremely aware of situations or obstruc-

tions that can cause material to pinch the top

of or otherwise stop the chain.

S Do not cut more than one log at a time.

S Do not twist the saw as the bar is with-

drawn from an undercut when bucking.

Avoid Pull--In:

S Always begin cutting with the engine at full

speed and the saw housing against wood.

S Use wedges made of plastic or wood.

Never use metal to hold the cut open.

Kickback Path

Clear The

Work ing Area

Avoid Obstructions

REDUCETHECHANCEOF

KICKBACK

S Recognize that kickback can happen.

With a basic understanding of kickback,

you can reduce the element of surprise

which contributes to accidents.

S Never let the moving chain contact any ob-

ject at the tip of the guide bar.

S Keep the working area free from obstruc-

tions 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.

S 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 main-

tenance instructions. Check tension at regu-

lar intervals with the engine stopped, never

with the engine running. Make sure the bar

clamp nuts are securely tightened after ten-

sioning the chain.

S Begin and continue cutting at full speed. If

the chain is moving at a slower speed, there

is greater chance of kickback occurring.

S Cut one log at a time.

S Use extreme caution when re-entering a

previous cut.

S Do not attempt cuts starting with the tip of

the b ar (plunge cuts).

S Watch for shifting logs or other forces that

could close a cut and pinch or fall into chain.

S Use the Reduced--Kickback Guide Bar

and Low--Kickback Chain specified for

your saw.

MAINTAIN CONTROL

Never reverse

hand positions

Stand to the left of

the saw

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McCulloch Mac742 Manual

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