Évaluations - 4, GPA: 4 ( )

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Note: If needed, drive wedges into felling cut to control direction of fall. If tree settles back and pinches chain, drive wedges into felling cut to remove saw. Only use wedges made of wood, plastic, or aluminum. Never use wedge made of steel. This could cause kickback and damage to chain. 4. When tree begins to fall, quickly •remove saw from felling cut •release trigger to turn saw off • put saw down •exit area using retreat path WARNING: Be alert for falling overhead limbs. Watch your footing while exiting area. 108539 18 OPERATING CHAIN SAW Continued LIMBING A TREE 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. WARNING: Avoid kickback. Kick- back can result in severe injury or death. See Kickback, page 3, to avoid risk of kickback. 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 12). 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. BUCKING A LOG Bucking a log is cutting a log into sections. Make sure your footing is firm. Keep feet apart. Divide your weight evenly on both feet. When possible, raise log or section off ground. Do this by using limbs, logs, chocks, etc. When cutting through log, maintain control by reducing cutting pressure near end of cut. Do not relax your grip on chain saw handles. Do not let moving chain touch ground. Ground will dull moving chain. After cutting through log, release trigger to turn saw off before moving saw. Follow directions below to buck a log. Entire Length Of Log On Ground Cut log from top (see Figure 13). Log Supported On One End 1. Make first cut on underside of log (see Figure 14). Use top of guide bar to make this cut. Cut 1/3 through diameter of log. This cut will keep section from splintering when cut. 2. Make second cut directly above first cut. Cut down to meet first cut. This cut will keep log from pinching guide bar and chain. Log Supported On Both Ends 1. Make first cut from above log (see Figure 15). Cut 1/3 through diameter of log. This cut will keep section from splintering when cut. 2. Make second cut on underside of log, directly under first cut. Use top of guide bar to make this cut. Cut up to meet first cut. This will keep log from pinching guide bar and chain. TRIMMING A TREE (PRUNING) WARNING: Avoid kickback. Kick- back can result in severe injury or death. See Kickback, page 3, to avoid risk of kickback. WARNING: • If on slope, make...

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