Assessments - 4, GPA: 3.8 ( )

Fabricante : Remington Power Tools Arquivo Tamanho: 2.7 mb Arquivo Nome : Língua de Ensino:

Make sure saw is running at full speed before starting a cut. 6. When starting a cut, place moving chain against wood. Hold saw firmly in place to avoid possible bouncing or skating (sideways movement) of saw. 7. Guide saw using light pressure. Do not force saw. The motor will overload and can burn out. It will do the job better and safer at the rate for which it was intended. 8. Remove saw from a cut with saw running at full speed. Stop saw by releasing trigger. Make sure chain has stopped before setting saw down. 9. Practice until you can maintain a steady, even cutting rate. Trigger Switch Lockout Button Figure 12 - Lockout Button and Trigger Location 14 Hinge 2" (5 cm) 2"(5 cm) 2nd Cut 1st Cut Lower Notch Cut 3rd Cut - Felling Cut Hinge 2" (5 cm) 2"(5 cm) 2nd Cut 1st Cut Lower Notch Cut 3rd Cut - Felling Cut OPERATING CHAIN SAW ENGLISH FELLING A TREE (Cutting Down a Tree) WARNING: • Avoid kickback. Kickback can result in severe injury or death. See Kickback to avoid risk of kickback. • Do not fell a tree without ample skill or expert help. • Keep children, animals, and bystanders away from area when felling a tree. • If two or more persons perform bucking and felling operations at the same time, provide ample distance between operations. Provide distance of at least twice the height of tree being felled. WARNING: When felling a tree, be aware of your surroundings. Do not endanger any person, strike utility lines, or cause property damage. If tree strikes utility lines, contact utility company at once. Felling is the process of cutting down a tree. Make sure your footing is firm. Keep feet apart. Divide your weight evenly on both feet. Follow directions below to fell a tree. Before Felling a Tree 1. Before felling, inspect tree. Make sure there are no dead limbs or branches that may fall on you. Study natural lean of tree, location of larger branches, and wind direction. This will help you judge which way tree will fall. 2. Clear work area around tree. 3. Plan and clear a retreat path before felling. Make retreat path opposite to planned direction of fall of tree and at 45° angle (see Figure 13). Direction of Fall Retreat Path Retreat Path 45° Tree Figure 13 - Retreat Path From Tree 4. Remove dirt, stones, loose bark, nails, staples, and wire from tree where you will make felling cuts. 5. Stay on uphill side when felling tree. Tree could roll or slide downhill after falling. Felling Procedure A) Felling Notch A properly placed felling notch will determine direction tree will fall. Place felling notch on side of tree in direction you want tree to fall (see Figure 14). Follow directions below to create a felling notch. 1. Make lower notch cut as close to ground as possible. Hold saw so guide bar is horizontal. Cut 1/3 the diameter of tree trunk (see Figure 14). Note: Always make this horizontal lower notch cut first. If you make this cut second, tree can pinch chain or guide bar. 2. Start upper notch cut the same distance above first cut as first cut is deep. Example:If lower notch cut is eight inches deep, start upper notch cut eight inches above it. Cut downward at 45° angle. The upper notch cut should meet end of lower notch cut (see Figure 14). 3. Remove tree trunk wedge created by notching cuts. WARNING: Do not cut all the way through tree. Leave about two inches of tree diameter uncut directly behind felling notch (see Figure 14). This uncut portion acts as a hinge. The hinge helps keep tree from twisting and falling in wrong direction. Direction of Fall Upper Notch Cut Figure 14 - Felling A Tree B) Felling Cut 1. Make felling cut two inches higher than lower notch cut and on opposite side of tree (see Figure 14). Keep felling cut parallel to lower notch cut. 15 16 Limbing is removing branches from a fallen tree. Make sure your footing is firm. Keep feet apart. Divide your weight evenly on both feet. Do not remove larger limbs under tree that support log off ground. Remove each limb with one cut (see Figure 15). Clear cut limbs from work area often. This will help maintain a safe work area. Make sure you start your cut where limb will not pinch saw during cutting. To avoid pinching, start cut on freely hanging limbs from above limb. Start cut on limbs under tension from under limb. If pinch occurs, turn saw off, lift limb, and remove saw. WARNING: When cutting limb that is under tension, use extreme caution. Be alert for wood springing back. When wood tension is released, limb could spring back and strike operator causing severe injury or death. LIMBING A TREE WARNING: Avoid kickback. Kickback can result in severe injury or death. See Kickback to avoid risk of kickback. WARNING: Be alert for falling overhead limbs. Watch your footing while exiting area. Figure 15 - Limbing A Tree WARNING: Avoid kickback. Kickback can result in severe injury or death. See Kickback to avoid risk of kickback. WARNING: • If on slope, make...

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