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SAFETY MEETING. CHAIN SAW SAFETY. The safe felling of a tree includes making three precise and strategic cuts. The top cut is the first of two cuts that result in a V-shaped notch. The notch is made on the side of the tree that you want it to fall. The Correct Cut

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SAFETY MEETING

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Safety meeting

SAFETY MEETING

CHAIN SAW SAFETY


Safety meeting

The safe felling of a tree includes making

three precise and strategic cuts.


Safety meeting

The top cut is the first of two cuts that result in a V-shaped notch. The notch is made on the side of the tree that you want it to fall.

The Correct Cut

1.Starting PointImportant -- begin at any height as long as you allow enough room for the undercut

2. Angle of AttackImportant -- cut downward at an angle of 70 degrees

3. Ending PointStop when the cut reaches ¼ to 1/3 of the trunk's diameter or when the cut reaches 80% of the tree's diameter at chest level


A common incorrect cut

A Common Incorrect Cut

Here the top cut is not

steep enough . . .

. . . resulting in a notch of

less than 70 degrees


Safety meeting

The Bottom or UndercutThe undercut is the second of two cuts that result in a V-shaped notch. The notch is made on the side of the tree facing the direction that you want it to fall.

The Correct Cut

1.Starting PointVery Important -- begin at the level that will create at least a 70 degree notch opening

2. Angle of AttackImportant -- cut upward at a 20-degree angle

3. Ending PointVery important -- stop when the cut reaches the end point of the face cut


Safety meeting

The Back CutThe back cut is the third and final cut and is made on the opposite side of the notch. The back cut disconnects almost all of the tree from the stump leaving a hinge that helps to control the tree's fall.

The Correct Cut

1.Starting PointImportant - begin on the opposite side of the notch at the same level as the notched corner

2. Angle of AttackImportant - cut flat along a horizontal plane

3. Ending PointVery important - stop at the point that will leave a hinge width that is 1/10 the tree's diameter

This is the simplest of all back cuts. Other back-cutting

techniques may be required for felling difficult trees.


Even an expert can get hurt

EVEN AN EXPERT CAN GET HURT…


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from SafetyShare.org

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