Poulan 1994-01 User Manual - Page 16
Blade, Safety, Guard, Against, Thrust
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A. BLADE SAFETY 1. OPERATOR SAFETY a. Always wear eye protection when operating, servicing, or performing maintenance on your unit. See "Safety Accessories." b. Always wear heavy, long pants, long sleeves, boots, and gloves. Do not go barefoot or wear sandals, jewelry, short pants, short sleeves, loose clothing, or clothing with loosely hangingstraps, ties, tassels, etc.; they can be caught in moving parts. Secure hair so it is above shoulder length. Being fully covered will help protect you from pieces of toxic plants such as poison ivy thrown by the blade, which could be more ofa hazard than touchingtheplant itself Do not operate this unit when you are tired, ill, or under the influence of alcohol, drugs, or medication. d. Always use the handlebar and a properly adjusted shoulder strap. See "Assembly." e. Do not swing the unit with such force that you are in danger of losing your balance. f. Never start or run the engine inside a closed room or building. Breathing exhaust fumes can kill. g. Keep handles free of oil and fuel. 2. UNIT SAFETY a. Inspect the entire unit before each use. Replace damaged parts. Check for fuel leaks and maim sure all handles, guards, and fasteners are in place and securely fastened. b. Be sure the metal shield is properly attached. The metal shield must be installed for all blade usage. c. Make sure the blade is properly installed and securely fastened. Refer to "Assembly" d. Be sure the blade stops turning when the engine idles. See "Trouble Shooting Chart." e. Make carburetor adjustments with the drive shaft housing supported to prevent the blade from contactingany object. Hold unit byhand; do not use the shoulder strap for support. f. Keep others awaywhen riftingcarburetor adjustments. g. Have all maintenance and service not explained in this manual performed by an Authorized Service Dealer. 3. CUTTING SAFETY a Inspect the area to be cut before each use. Remove objects (rocks, broken glass, nails, wire, string, etc.) which can be thrown or become entangled in the blade. b. Always keep the engine on the right side of your body. Hold the unit firmly with both hands. c. Keep firm footing and balance. Do not over- reach. d. Keep blade below waist level. e. Do not raise the engine a ove your west The b can come dangerously close to your body. f. Cut at full throttle. g. Cut from your right to your left. h. Use only for jobs explained in this manual. Do not use the blade as an edger:The shield does not provide adequate protection. B. GUARD AGAINST BLADE THRUST • BImit Thrust is a reaction that only occurs when using a bladed unit. This reaction can cause serious injury such as amputation. Carefully study this section. It is important that you understand what causes blade thrust, how you can reduce the chance of its occurring, and how you can remain in control of the unit if blade thrust occurs. • The forward tip on the shield helps to reduce the occurrence of blade thrust but cannot prevent the occurrence. The operator must follow all warnings and safety instructions in this section to lessen the chance of blade thrust occurring and to maintain control of unit if the reaction does occur. 1. WHAT CAUSES BLADE THRUST Blade Thrust can occur when the spinning blade contacts an object that it does not cut. This contact causes the blade to stop for an instant and then suddenly move or "thrust" away from the object that was hit. The "thrusting" reaction can be violent enough to cause the operator to be propelled in any direction and lose control of the unit. The uncontrolled unit can cause serious injury if the blade'contacts the operator or others. Figure 21 . 2. WHEN BLADE THRUST OCCURS. Blade thrust can occur without warning if the blade snags, stalls, orbinds. This is morelikelyto occur in areas where it is difficult to see the material beingcut. Byusingtheunit properly, the occurrence of blade thrust will be reduced and the operator will be less likely to lose control. - 16 BLADE THRUST Figure 21 3. REDUCE THE CHANCE OF BLADE THRUST a. Cut only grass, weeds, and woody brush up to 2 inches in diameter with the brush blade. Do not let theblade contact material it cannot cut such as stumps, rocks, fences, metal, etc., or clusters of hard,woodybrush havinga diametergreaterthan 2 inches. b. Keepthebladesharp. Adull bladeis morelikelyto snag,and thrust. c. Cut onlyat fullthrottle. The blade has maximum cutting power at full throttle and is less likely to bind or stall. cl. "Feed" the blade deliberately and not too rapidly The blade can thrust away if it is fed too rapidly e. Cut only from your right to your left. Swinging the unit in the same direction as the blade spins increases the cutting action.