Preparing to Start the Saw
Felling Trees (cont.)
Throttle Lockout | Throttle Lock |
Lever | Button |
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| Ignition |
| Throttle |
| Switch |
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| Trigger | 35712 |
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| WARNING! |
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| The saw chain will rotate |
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| when the saw is started! |
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| Clear a safe work area before |
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OPERATION | starting the saw! |
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position |
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| IMPORTANT! |
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| Engine ignition is controlled by a two- |
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| below the throttle lever. This switch is |
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| labeled ÒIÓ for ON and ÒOÓ for OFF. | Pull the choke | 35713 |
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| Control Positions (cold engine) | control out to |
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| close. |
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| 1. Switch the ignition ON |
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| (ÒIÓ position). | Control Positions (warm engine) | |
| 2. Choke the engine by pulling the | ■ Set the throttle to Òfast idleÓ (as | |
| choke control all the way out (choke | discribed in step 3). | |
| is closed). | IMPORTANT! | |
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3. | Set the throttle to Òfast idleÓ by | The throttle lever cannot be moved | |
| performing the following: | ||
| without first depressing the lockout | ||
■ Depress the throttle lockout lever. | |||
lever. | |||
■Squeeze the throttle trigger.
■Press and hold the throttle lock button while releasing the throttle trigger.
Felling Small Trees
(less than 6 inches in diameter)
1.Determine the direction of fall. If you are uncertain as to direction of fall, use the procedure ÒFalling Large TreesÓ.
2.Start cutting on the side of the tree away from the direction of fall, and make a single felling cut all the way through the tree.
3.Stop the saw and put it down on the ground.
4.Use your retreat path to exit the area quickly.
Felling Large Trees
(more than 6 inches in diameter)
If a tree is otherwise healthy and not seriously out of balance, its direction of fall can often be encouraged by first ÒnotchingÓ the tree on the side facing the desired direction of fall.
After the notch is completed, start the felling cut slightly higher and on the opposite side of the tree, away from the direction of fall.
The goal of this method is to leave a sturdy wooden ÒhingeÓ on which the tree will pivot while itÕs falling.
1.Determine the direction of fall.
2.On the side of the tree facing the direction of fall, make a single 90° cut through about 1/3 the treeÕs diameter.
3.Make a second cut at a 45° angle to the first cut to remove a notch from the tree.
4.Make the final felling cut on the opposite side of the tree about 2 inches above the bottom of the notch.
NOTE:
If the felling cut appears to be closing on the bar, use a mallet to drive one or two plastic or wooden wedges into the cut behind the bar.
5.Stop the saw, and put it down.
6.Use your retreat path to exit the area quickly.
WARNING
Failure to leave a wooden hinge during the felling or
Òback cutÓ can cause the tree to pinch the sawÕs guide bar, and may also change the direction of fall!
Always make the felling cut parallel to the bottom cut! An angled falling cut may cause the tree to split, possibly changing the direction of fall!
Direction of
Fall
Hinge
Notch
Felling
Cut
Felling Large Trees
OPERATION
16 | 25 |