Switch | N |
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• Always be sure of your footing |
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and grip the chain saw firmly |
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with both hands with the thumb |
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and fingers encircling both |
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handles. |
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• To turn the tool ON push the lock |
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off button (2) to either side and |
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squeeze the trigger switch (1) |
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with your fingers as shown in |
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figure N. (Once the tool is running you can release the lock off | ||
button.) |
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• To turn the tool OFF, release the trigger switch. | ||
Chain Braking System |
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Your chain saw is equipped with a motor chain braking system which | ||
will stop the chain quickly each time you release the trigger. This | ||
system should be tested before every use. |
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Saw Chain Sharpness |
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The cutters will dull immediately if they touch the ground or a nail | ||
while cutting. Refer to “Sharpening the Chain”. | ||
Saw Chain Tension |
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This should be done regularly. Refer to “Adjusting Chain Tension”. | ||
Common Cutting Techniques | ||
Felling |
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Felling is the process of cutting down a tree. Be sure battery is | ||
fully charged before felling a tree so you can finish on a single | ||
charge. Do not fell trees in high wind conditions. | ||
Bucking is the process of cutting a felled tree or log into lengths. | ||
When bucking and felling operations are being performed by two | ||
or more persons, at the same time, the felling operation should be | ||
separated from the bucking operation by a distance of at least | ||
twice the height of the tree being felled. Trees should not be felled | ||
in a manner that would endanger any person, strike any utility line | ||
or cause any property damage. If the tree does make contact with | ||
| any utility line, the utility company should be notified immediately. | |||||
| Scrutinize the surrounding overhead for dead or broken limbs or | |||||
| branches which may fall during the felling process. | |||||
| The chain saw operator should keep on the uphill side of the | |||||
| terrain as the tree is likely to |
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| roll or slide downhill after it is | O | RETREAT |
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• | felled. |
| DIRECTION | |||
(Figure O) A retreat path |
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| should be planned and |
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| OF |
| cleared as necessary before |
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| FALL | |
| cuts are started. The retreat |
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| path should extend back and |
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| TREE | |
| diagonally to the rear of the | 45° |
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• | expected line of fall. |
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Before felling is started, |
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| consider the natural lean of |
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| the tree, the location of larger branches and the winddirection to | |||||
| judge which |
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| way the tree will fall. Have wedges (wood, plastic or aluminum) | |||||
| and a heavy mallet handy. |
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| Remove dirt, stones, loose bark, nails, staples, and wire from the | |||||
| tree where the felling | P |
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• | cuts are to be made. |
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| 2 (5cm) |
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(Figure P) Notching | DIRECTION | FELLING BACK | ||||
| Undercut - Make the | INCHES | ||||
| notch 1/3 of the | OF FALL |
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| CUT | |
| diameter of the tree, |
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| 2 (5cm) |
| perpendicular to the |
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| direction of the fall. | NOTCH |
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| INCHES | |
| Make the lower |
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| horizontal notching cut |
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| first. This will help to |
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| avoid pinching of either the saw chain or the guide bar when the | |||||
• | second notch is being made. |
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(Figure Q) Felling Back Cut - Make the felling back cut at least | ||||||
| 2 inches (51mm) higher than the horizontal notching cut. Keep the | |||||
13 | felling back cut parallel to the horizontal notching cut. Make the | |||||