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990r
OPERATOR’S
MANUAL
MODEL NO. 990r
IMPORTANT MANUAL DO NOT THROW AWAY
1
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INTRODUCTION TABLE OF CONTENTS THANK YOU I. California Emission Regulations ................................3 II. Safety Warnings ......................................................3-6 Thank you for purchasing this quality product. This modern A. Safety Warnings for Brush Blade ..........................4 outdoor power tool has been designed to provide you with B. Safety and International Symbols ......................5-6 many hours of useful service. You will find it to be a great labor-savi
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CALIFORNIA EMISSION REGULATIONS The engine of your lawn and garden care product meets the 1995 California emissions regulations. To ensure that your unit continues to meet these regulations, refer to the following information and instructions in this operator's manual. These units are identified by the label on the engine of your product. A typical identification label is shown. SAFETY WARNINGS FUEL AND PRE-OPERATIONAL THE PURPOSE OF SAFETY SYMBOLS IS TO ATTRACT YOUR ATTENTION TO POSSIBLE DANGE
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SAFETY WARNINGS OPERATIONAL OTHER SAFETY WARNINGS • Wear safety glasses/goggles at all times when • Store the trimmer in an appropriate and dry location to operating this trimmer. prevent unauthorized use and damage. • Dress properly. Do not operate this trimmer when barefoot or wearing open sandals. Always wear sturdy, rubber-soled footwear. The use of gloves, ear/hearing SAFTEY WARNINGS FOR protection and long pants are recommended. THE BRUSH BLADE • Do not wear loose fitting clothing or ar
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SAFETY WARNINGS (Continued) SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information. SYMBOL SIGNIFICATION • SAFETY ALERT SYMBOL. Indicates caution, warning or danger. May be used in conjunction with other symbols or pic- tographs. • READ OPERATOR'S MANUAL. Failure to follow operating instructions and
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SAFETY WARNINGS (Continued) SYMBOL SIGNIFICATION • PRIMER BULB. Push primer bulb, fully and slowly, 5 to 7 times. • CHOKE CONTROL. FULL CHOKE position. • CHOKE CONTROL. PARTIAL CHOKE position. • CHOKE CONTROL. RUN position. • THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY. Warning. Do not operate without guard in place. Keep away from rotating cutter. • BRUSHCUTTERS – REPLACE DULL BLADE. Do not sharpen the brush blade. Sharpening the blade can cause the blade tip to break off w
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ASSEMBLY INSTRUCTIONS ADJUSTING THE J-HANDLE The J-handle is shipped completely assembled on Model 990r (Fig. 1). Use the following instructions to adjust the J-handle to the correct operating position. 1. Loosen the four (4) mounting screws on the J-handle. It is not necessary to remove the screws. 2. Slide the J-handle through the clamp until the arrow / white line on the decal touches the clamp assembly (Fig. 2). 3. Position the handle grip as desired (forward and back) and tighten the mou
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ASSEMBLY INSTRUCTIONS (Continued) 4. Install the blade, washer, and lock nut. Insert the INSTALLING THE BRUSH BLADE locking rod into the locking rod slot (Fig. 7). Make sure that the blade stays flat against the washer while tightening the lock nut counterclockwise until it is 1. Remove the line guard. finger-tight. 2. Insert the locking rod into the locking rod slot. Rotate 5. If you have a torque wrench, tighten the lock nut to the line spool clockwise. Remove the line spool and 225-250 in•l
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ASSEMBLY INSTRUCTIONS (Continued) 6. When assembling the brush blade, the blade edge should line up with the blade locating mark on the casting (Fig. 10). The brush blade should be within a blade thickness of the mark. If the blade isn't lined up correctly, refer to Fig. 7 for reassembly. Blade Locating Mark Fig. 10 WARNING Make sure the blade is flat against the washer after the lock nut is tightened. If the blade is off-center, the trimmer will be damaged by vibration, and the blade may fly
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ASSEMBLY INSTRUCTIONS (Continued) Installing the Lower (Attachment) Boom OPERATING THE 1. Loosen the wing screws. This will allow the lower ® SPLIT BOOM COUPLER boom to be inserted into the coupler (Fig. 12). ® 2. Remove the protective cover or hanger from the lower Model 990r is equipped with a Split Boom coupler, (attachment) boom. Push the lower (attachment) which enables optional attachments to be installed on this unit. boom into the coupler (Fig. 13). The optional attachments are: 3. Be
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OIL & FUEL INFORMATION THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED GAS ONLY. NOTE: BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO START OR OPERATE THIS UNIT. Using old or improper oil or fuel can cause engine damage. This type of damage will void the engine warranty. RECOMMENDED OIL TYPE Using the proper type and weight of oil in the crankcase is extremely important. Check the oil before each use and change the oil regularly. Failure to use the correct oil, or using dirty
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OIL & FUEL INFORMATION (Continued) RECOMMENDED FUEL TYPE WARNING Fuel is extremely flammable and its vapors can explode if they are ignited. Always stop the O-ring engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep Full (100 ml/3.4 oz) sparks and open flames away from the area. Add Oil Fill the fuel tank, using clean, fresh, unleaded gasoline. NOTE: Alcohol blended fuel absorbs moisture Fig. 17 (water). As little as 1% moisture in the fuel can ca
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STARTING/STOPPING INSTRUCTIONS 1. CHECK THE OIL LEVEL IN THE Ignition Switch CRANKCASE, AND PUT THE IGNITION STOP SWITCH IN THE "RUN" (I) POSITION. See (O) Figure 20 for the location of the ignition switch. RUN (I) 2. FULLY PRESS AND RELEASE THE PRIMER BULB 5 TO 7 TIMES. See Fig. 21 for the primer bulb location. 3. PLACE THE CHOKE LEVER IN THE FULL “CHOKE” POSITION. See Fig. 21. NOTE: For a warm engine, go directly to Throttle Trigger Step 5 (place the choke lever directly in the "PARTIAL" c
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OPERATING INSTRUCTIONS ADJUSTING THE TRIMMING LINE USING THE BRUSH BLADE LENGTH 1. Always maintain the proper stance when using the Your trimmer is equipped with a bump head that allows brush blade (Fig. 25). the operator to release more trimming line without stop- ping the engine. To release additional line, lightly tap the Sharpening the Brush Blade trimming head on the ground (Fig. 23) while operating the trimmer at high speed. WARNING Do not sharpen the brush blade. Sharpening the blade ca
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MAINTENANCE AND REPAIR INSTRUCTIONS MAINTENANCE SCHEDULE These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up. FREQUENCY MAINTENANCE REQUIRED REFER TO: Daily or Before Fill fuel tank. Page 11 Starting Check oil level. Pages 10-11 Engine Every Change oil after initial use. Page 11 10 Hours Clean and re-oil air filter. Page 18 Every Change oil. Pages 10-11 25 Hours Check spark plug condition
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MAINTENANCE AND REPAIR INSTRUCTIONS (Continued) 2. Remove the inner reel (Fig. 27). LINE INSTALLATION The trimming line may be replaced by two different meth- ods - rewinding the existing reel or installing a prewound reel. REWINDING THE EXISTING REEL To rewind the existing reel you must: Inner Reel 1. Check for the correct line size. 2. Remove the existing reel and spring. 3. Wind the existing reel with the new line. 4. Reinstall the existing reel and spring. Fig. 27 The Correct Line to Use
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MAINTENANCE AND REPAIR INSTRUCTIONS (Continued) Winding the Existing Reel 1. Take approximately 12.7 m (50 ft) of new trimming line, loop it into two equal lengths. Insert each end of the line through one of the two holes in the inner reel (Fig. 30). Pull the line so that the loop is as small as possible. Fig. 32 Reinstalling the Reel 1. Insert the ends of the line through the eyelets in the outer spool (Fig. 33). Place the inner reel into the outer Fig. 30 spool. Grasp the ends and pull firmly
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MAINTENANCE AND REPAIR INSTRUCTIONS (Continued) GEAR HOUSING SERVICE WARNING The gear housing gets very warm after long peri- ods of use. Do not touch the housing until it has cooled. 1. Check the gear housing for lubricant every 50 hours of operation. 2. To check the lubricant level, remove the fill plug (Fig. 34). The lubricant should be up to the bottom edge of the check hole. If it is low, bring the level up with a good quality, lithium-based, #2, multi-purpose grease. 3. Reinstall the fill
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MAINTENANCE AND REPAIR INSTRUCTIONS (Continued) AIR FILTER MAINTENANCE NOTE: CLEAN AND RE-OIL THE AIR FILTER EVERY 10 HOURS OF OPERATION. Your unit’s air filter is one of the most important areas to maintain. If it is not maintained, you will void the warranty. Before cleaning, make sure the unit is turned off. 1. Remove the three (3) screws on the carburetor/air filter cover assembly. Remove the air filter cover (Fig. 35). Fig. 37 NOTE: The choke lever should be in the "PARTIAL" position to
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MAINTENANCE AND REPAIR INSTRUCTIONS (Continued) CARBURETOR ADJUSTMENT Throttle Idle Speed Lever Screw This unit is equipped with a diaphragm-type carburetor that has been carefully calibrated at the factory. In most cases, no further adjustment will be required. NOTE: To meet the 1995 California emission regulations, the carburetor has adjust- ment needle limiter caps to restrict the amount of adjustment. High Speed The condition of the air filter is important to the operation of the trimmer. A
