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766r
2-Cycle Gas Trimmer
OPERATOR’S MANUAL
FOR QUESTIONS, CALL 1-800-345-8746 in U.S. or
1-800-265-6778 in CANADA
www.ryobi.com
IMPORTANT MANUAL DO NOT THROW AWAY
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INTRODUCTION TABLE OF CONTENTS I. California Emission Regulations . . . . . . . . 3 THANK YOU Thank you for buying this quality product. This II. Rules for Safe Operation . . . . . . . . . . . 4-8 modern outdoor power tool will provide many A. Important Safety Information . . . . . . .4-6 hours of useful service. You will find it to be a B. Safety and International Symbols . . .6-7 great labor-saving device. This operator’s C. Know Your Unit . . . . . . . . . . . . . . . . . .8 manual provides y
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CALIFORNIA EMISSION REGULATIONS This unit meets the 1995 to 1998 California emissions regulations for small off-road engines. These units are identified by the label on the engine of your product. A typical identification label is shown. To ensure that your unit continues to meet these regulations, refer to the following information and instructions in this operator’s manual. California Proposition 65 Warning: WARNING THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF
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RULES FOR SAFE OPERATION The purpose of safety symbols is to attract your DANGER: Failure to obey a safety attention to possible dangers. The safety warning will result in serious injury symbols, and their explanations, deserve your Always to yourself or to others. careful attention and understanding. The safety follow the safety precautions to warnings do not by themselves eliminate any reduce the risk of fire, electric danger. The instructions or warnings they give shock, and personal injury.
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RULES FOR SAFE OPERATION • Store fuel only in containers specifically • Avoid accidental starting. Be in the starting designed and approved for the storage of position whenever pulling the starter rope. such materials. The operator and unit must be in a stable position while starting. See • Always stop the engine and allow it to cool Starting/Stopping Instructions. before filling the fuel tank. Never remove the cap of the fuel tank, or add fuel, when the • Use the right tool. Only use this tool
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RULES FOR SAFE OPERATION • Never douse or squirt the unit with water or OTHER SAFETY WARNINGS any other liquid. Keep handles dry, clean and • Never store the unit, with fuel in the tank, free from debris. Clean after each use, see inside a building where fumes may reach an Cleaning and Storage instructions. open flame or spark. • Keep these instructions. Refer to them often • Allow the engine to cool before storing or and use them to instruct other users. If you transporting. Be sure to secure t
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RULES FOR SAFE OPERATION MEANING SYMBOL • THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY WARNING: Do not operate without the cutting attachment shield in place. Keep away from the rotating cutting attachment. • ON/OFF STOP CONTROL ON / START / RUN • ON/OFF STOP CONTROL OFF OR STOP • HOT SURFACE WARNING Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation. When turned off they remain hot for a short time. • SHARP BLADE WARNING: Th
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RULES FOR SAFE OPERATION KNOW YOUR UNIT Fuel Cap APPLICATION Use this unit for; On/Off Stop Control • Cutting grass and light weeds. • Decorative trimming around trees, fences, etc. Starter Rope Shaft Grip Spark Plug Throttle Control D-handle Choke Lever Power Head Shaft Housing Primer Bulb Air filter/Muffler Cover Line Cutting Blade Cutting Attachment Shield Cutting Attachment 8
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ASSEMBLY INSTRUCTIONS 5. Tighten the wing nut (Fig. 3). INSTALLING AND ADJUSTING THE D-HANDLE Grip 1. Push the D-handle down onto the shaft housing so that the handle slants towards the powerhead (Fig. 1). The squared bolt hole in the handle is to the right. Wing Nut Fig. 3 Bolt Washer Fig. 1 2. Insert the shoulder bolt into the squared hole in the handle. Place the washer on the bolt, and screw the wing nut onto the bolt. 3. Rotate the D-handle to place the grip above the top of the shaft housi
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ASSEMBLY INSTRUCTIONS 3. Install a screw into the hole from the bottom INSTALLING THE CUTTING of the cutting attachment shield and screw it ATTACHMENT SHIELD into the nut installed in step #2 (Fig 6). Do Use the following instructions if the cutting not tighten. attachment shield on your unit is not installed. WARNING: Never operate the trimmer without the cutting attachment shield in place to prevent serious personal injury. 1. Slide the cutting attachment shield into the shield mount on the c
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OIL AND FUEL INFORMATION Thoroughly mix the proper OIL AND FUEL MIXING ratio of 2-cycle engine oil with INSTRUCTIONS unleaded gasoline in a separate Old and/or improperly mixed fuel are the fuel can. Use a 32:1 fuel/oil ratio. Do not mix main reasons for the unit not running them directly in the engine fuel tank. See the properly. Be sure to use fresh, clean table below for specific gas and oil mixing unleaded fuel. Follow the instructions carefully ratios. for the proper fuel/oil mixture. NOTE
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STARTING/STOPPING INSTRUCTIONS 5. With the unit on the ground, squeeze the STARTING INSTRUCTIONS throttle control and pull starter rope briskly WARNING: Avoid accidental (Fig. 9). Continue pulling until the engine starting. Be in the starting position sounds as though it wants to run, when pulling the starter rope (normally 2 to 5 pulls). (Fig. 9). The operator and unit must NOTE: Squeeze the throttle control until the be in a stable position while starting engine has started and warmed up. to
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OPERATING INSTRUCTIONS HOLDING THE TRIMMER ADJUSTING TRIMMING LINE LENGTH The Bump Head™ cutting attachment allows WARNING: Always wear eye, you to release trimming line without stopping hearing, foot and body protection to the engine. To release more line, lightly tap the reduce the risk of injury when cutting attachment on the ground (Fig. 11) operating this unit. while operating the trimmer at high speed. Before operating the unit, stand in the operating NOTE: Always keep the trimming line f
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OPERATING INSTRUCTIONS TIPS FOR BEST TRIMMING RESULTS DECORATIVE TRIMMING • The correct angle for the cutting attachment Decorative trimming is accomplished by is parallel to the ground. removing all vegetation around trees, posts, fences, etc. • Do not force the cutting attachment. Allow the tip of the line to do the cutting (especially Rotate the whole unit so that the cutting along walls). Cutting with more than the tip attachment is at a 30° angle to the ground will reduce cutting efficienc
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MAINTENANCE AND REPAIR INSTRUCTIONS LINE INSTALLATION Shaft Always use genuine Ryobi 0.080 in. (2.03 mm.) Outer Spool replacement line. Larger line may make the engine overheat or fail. WARNING: Do not use metal Inner Reel reinforced line. Spring There are two methods to replace the trimming line. • Wind the inner reel with new line • Install a prewound inner reel Fig. 14 NOTE: Replacement line Part # 610375,or a 4. Use a clean cloth to clean the the inner reel, prewound reel, Part # 153577 can
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MAINTENANCE AND REPAIR INSTRUCTIONS 5. Take approximately 25 feet (7.6 m) of new 7. Insert the ends of the line into the two 0.080 in. (2.03 mm.) trimming line, loop it into holding slots (Fig. 19). two equal lengths. Insert each end of the line through one of the two holes in the inner reel (Fig. 17). Pull the line through the inner reel so that the loop is as small as possible. NOTE: Always use the correct line length when installing trimming line on the unit. The line may not release properly
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MAINTENANCE AND REPAIR INSTRUCTIONS Installing a Prewound Reel AIR FILTER MAINTENANCE 1. Hold the outer spool with one hand and Removing the Air Filter/Muffler Cover remove the Bump Knob™ by turning it counterclockwise (Fig. 13, Pg. 15). Inspect WARNING: To avoid serious the bolt inside the Bump Knob™ to make personal injury, always turn your sure it will move freely. Replace the Bump trimmer off and allow it to cool Knob™ if damaged. before you clean or do any 2. Remove the inner reel from the
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MAINTENANCE AND REPAIR INSTRUCTIONS 4. Apply enough clean SAE 30 oil to lightly coat Cleaning the Air Filter the filter (Fig. 24). WARNING: To avoid serious personal injury, always turn your trimmer off and allow it to cool before you clean or do any maintenance on it. Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Not maintaining the air filter will VOID the warranty. 1. Remove air filter/muffler cover. See Removing the Air filter/Muffler Cove
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MAINTENANCE AND REPAIR INSTRUCTIONS CARBURETOR ADJUSTMENT Idle Speed Screw The idle speed of the engine is adjustable through the Air filter/Muffler cover (Fig. 26). NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments. Check Fuel Mixture Old and/or improperly mixed fuel is usually the reason for the unit not running properly. Drain and refill the tank with fresh, properly mixed fuel Fig. 26 prior to making any adjustments. Re
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MAINTENANCE AND REPAIR INSTRUCTIONS REPLACING THE SPARK PLUG ACCESSORIES/REPLACEMENT PARTS Use a Champion RDJ7Y spark plug (or equivalent). The correct air gap is 0.020 in. 2-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . 147543 (0.5 mm.). Remove the plug after every 50 hours Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . 610311 of operation and check its condition. Replacement Line . . . . . . . . . . . . . . . . . . 610375 1. Stop the engine and allow it to cool. Grasp
