Bedienungsanleitung Stihl MS660 (Seite 18 von 124) (Spanisch)

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MS 650, MS 660

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Bow Guides

To avoid Kickback

The best protection from personal injury

that may result from kickback is to avoid

kickback situations:

1. Hold the chain saw firmly with both

hands and maintain a secure grip.

Don’t let go.

2. Be aware of the location of the guide

bar nose at all times.

3. Never let the nose of the guide bar

contact any object. Do not cut limbs

with the nose of the guide bar. Be

especially careful near wire fences

and when cutting small, tough

limbs, small size brush and saplings

which may easily catch the chain.

4. Don't overreach.

5. Don't cut above shoulder height.

6. Begin cutting and continue at full

throttle.

7. Cut only one log at a time.

8. Use extreme caution when

reentering a previous cut.

9. Do not attempt to plunge cut if you

are not experienced with these

cutting techniques.

10. Be alert for shifting of the log or

other forces that may cause the cut

to close and pinch the chain.

11. Maintain saw chain properly. Cut

with a correctly sharpened, properly

tensioned chain at all times.

12. Stand to the side of the cutting path

of the chain saw.

A = Pull-in

Pull-in occurs when the chain on the

bottom of the bar is suddenly stopped

when it is pinched, caught or encounters

a foreign object in the wood. The

reaction of the chain pulls the saw

forward and may cause the operator to

lose control.

Pull-in frequently occurs when the

bumper spike of the saw is not held

securely against the tree or limb and

when the chain is not rotating at full

speed before it contacts the wood.

To avoid Pull-in

1. Always start a cut with the chain

rotating at full speed and the

bumper spike in contact with the

wood.

2. The risk of pull-in may also be

reduced by using wedges to open

the kerf or cut.

B = Pushback

Pushback occurs when the chain on the

top of the bar is suddenly stopped when

it is pinched, caught or encounters a

foreign object in the wood. The reaction

of the chain may drive the saw rapidly

straight back toward the operator and

may cause loss of saw control.

Pushback frequently occurs when the

top of the bar is used for cutting.

To avoid Pushback

1. Be alert to forces or situations that

may cause material to pinch the top

of the chain.

2. Do not cut more than one log at a

time.

3. Do not twist the saw when

withdrawing the bar from a plunge

cut or underbuck cut because the

chain can pinch.

Warning!

Do not mount a bow guide on any

STIHL chain saw. Any chain saw

equipped with a bow guide is potentially

very dangerous. The risk of kickback is

increased with a bow guide because of

the increased kickback contact area.

Low kickback chain will not significantly

reduce the risk of kickback injury when

used on a bow guide.

Warning!

Use extreme caution when cutting small

size brush and saplings which may eas-

ily catch the chain, be whipped towards

you or pull you off balance.

001BA037 KN

001BA038 KN

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