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Flying objects from rotating saw will cause serious injury and/or death. Do not position saw with discharge directed towards cab. Machines equipped with high rotation/full lateral tilt linkages must have cab equipped with approved guarding. Contact your Caterpillar dealer for specific information. |
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Improper use of the boom and work tools could result in injury or death. The operator must be fully aware of all the functions for the joystick control and proper operating techniques. |
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General Method of Operation
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| Illustration 1 | g00725587 |
- Position the felling head forward by 3 to 5 degrees (A) when you approach a tree.
Note: Ensure that the disc saw is rotating at sufficient speed. If you feed the blade too slowly you will cause unnecessary friction on the blade and the speed of the blade will decrease. If you feed the blade too quickly you will cause damage to the stem of the tree.
- The felling head must line up with the tree.
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| Illustration 2 | g00725597 |
- Feed the disc saw through the tree in a smooth continuous motion.
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| NOTICE |
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Do not clamp the tree until after the cut is complete. Subjecting the tree to clamping forces before the cut is complete may cause damage to the stem and unnessary binding or stalling down of the saw blade. |
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- As the head cuts the tree, begin to close the grapple arms and the accumulator arms. Immediately after the cut is complete, close the grapple arms and the accumulator arms tightly.
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| Illustration 3 | g00725604 |
- Once the tree is completely severed, raise the felling head off the stump.
- Tilt the tree backward slightly in order to get the center of gravity closer to the center of the machine. This will improve the control of the tree.
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| NOTICE |
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Do not push the tree into position. Hard impacts will damage the head and booms. Ensure that the butt end of the tree does not touch the blade or hit against the guard of the saw motor once the tree has been released. |
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- Tilt the felling head forward. Open the grapple arms and release the tree.
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| Illustration 4 | g00725753 |
- The disc saw will continue to free wheel for several minutes after you shut off the blade. When it is necessary to stop the blade quickly, carefully lower the disc onto a stump. The disc saw can be brought to a complete stop in a matter of seconds.
Cutting Multiple Trees
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| NOTICE |
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Do not operate any other function while the disc saw is cutting the tree. Tilting or moving the felling head before the stem is cut through can damage the disc saw. |
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| Illustration 5 | g00725458 |
- Open the grapple arms and the accumulator arms. Advance the felling head by extending the boom and the stick or by moving the machine forward. Cut the first tree.
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| Illustration 6 | g00725463 |
- Immediately close the grapple arms and the accumulator arms on the tree. Advance to the next tree.
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| Illustration 7 | g00725466 |
- Open the grapple arms. The accumulator arms hold the first tree. Cut the second tree.
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| Illustration 8 | g00725469 |
- Close the grapple arms on the second tree. The accumulator arms move outward. The accumulator arms spring back to the open position. The arms will then close in order to grip the tree. Advance to the next tree.
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| Illustration 9 | g00725473 |
- Open the grapple arms. The accumulator arms now hold both trees. Cut the third tree.
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| Illustration 10 | g00725479 |
- When you travel, keep the grapple arms and the accumulator arms on the trees.
