Cub Cadet BC 509 BC 509 Operator's Manual - Page 3

RULES FOR SAFE OPERATION SYMBOL MEANING • CHOKE CONTROL 1. • FULL choke position 2. • PARTIAL choke position 3. • RUN choke position • SHARP BLADE WARNING: Sharp blade on cutting attachment shield. To prevent serious injury, do not touch the line cutting blade. • TRIMMER/ BRUSHCUTTER SAFETY WARNING: Thrown objects and rotating cutter can cause severe injury. Keep bystanders, especially children and pets, at least 50 feet (15 m) away from the cutting area. The cutting attachment shield must be used when using the trimmer cutting attachment. • BRUSHCUTTERS • REPLACE DULL BLADE Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. APPLICATIONS As a trimmer: • Cutting grass and light weeds. • Edging • Decorative trimming around trees, fences, etc. As a brushcutter: • Cut heavy grass and weeds up to 1/2" (1.3 cm) diameter. KNOW YOUR UNIT Muffler Starter Rope Grip Spark Plug Oil Fill Plug Fuel Cap Throttle Lockout Blue Choke Lever On/Off Control Tools Required: • Flat blade screwdriver • T-25 Torx screwdriver • Locking Rod • 13 mm closed-end or socket wrench Rapid Link™ Shaft Grip Throttle Control D-Handle Air Filter/Muffler Cover Primer Bulb Shaft Housing Cutting Head Shield Line Cutting Blade Cutting Head Brushcutter Blade ASSEMBLY INSTRUCTIONS INSTALL AND ADJUST THE D-HANDLE WARNING: To prevent serious personal injury, never operate the trimmer without the cutting attachment shield in place. 1. Remove the screws and bottom clamp piece that were installed on the D-handle for shipping. 2. Place D-handle over the shaft housing and onto the bottom clamp (Fig. 1). Place it a minimum of 6 inches (15.24 cm) from the end of the shaft grip. Screw (4) D-Handle 3. Start screws with a large Flat-head or T-25 Torx screwdriver. Do not tighten until making the handle adjustment. Min 6 in. 4. If it was pre-installed, loosen the screws on the D-handle just enough to move the (15.32 mm) D-handle. Bottom Clamp 5. While holding the unit in the operating position (Fig. 23), move the D-handle to the location that provides you the best grip. Fig. 1 6. Tighten the clamp screws evenly, until the D-handle is secure. INSTALL THE HARNESS 1. Push the strap through the center of the buckle. 2. Pull the strap over the cross bar and down through the slot in the buckle (Fig. 2). 3. Put the harness on over head and onto shoulder. Snap it on to the support fitting (Fig. 2). 4. Adjust length to fit the operator's size. Pull tab to lengthen, pull strap to shorten (Fig. 3). Fig. 2 REMOVE AND INSTALL THE CUTTING ATTACHMENT SHIELD Remove the cutting attachment shield when using the unit as a brushcutter Fig. 3 Cutting Attachment Shield Screws (3) Gearbox Remove the cutting attachment shield from the shield mount by removing the three (3) screws with a flat blade screwdriver (Fig. 4). Store parts for future use. Install the cutting attachment shield when using the unit as a grass trimmer Install the cutting attachment shield on the shield mount by inserting the three (3) screws into the shield mount. Tighten securely with a flat blade screwdriver (Fig. 4). REMOVE THE CUTTING ATTACHMENT AND INSTALL THE CUTTING BLADE Shield Mount Fig. 4 NOTE: To make cutting blade removal and installation easier, place the unit on the ground or on a work bench. Remove the Cutting Attachment Shield Shaft Output Shaft Bushing Hole Output Shaft Bushing See Remove and Install the Cutting Attachment Shield. Remove the Cutting Attachment Locking Rod Slot Locking Rod 1. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 5). Fig. 5 Fig. 6 2. Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 6). 3. While holding the locking rod, remove the cutting attachment by turning it clockwise off of the output shaft (Fig. 7). Store the cutting attachment for future use. ASSEMBLY INSTRUCTIONS NOTE: The blade retainer under the cutting attachment will be used when installing the cutting blade. Cutting Attachment Nut Blade Retainer Cutting Blade Install the Cutting Blade Pilot 4. Place the cutting blade on the output shaft Hole bushing (Fig. 8). 5. Make sure that the cutting blade is centered on the pilot step and sitting flat against the output Locking Rod shaft bushing (Fig. 9). Fig. 7 6. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing Pilot hole (Fig. 5). Step Shield Mount Fig. 8 7. Put the blade retainer and nut on the output shaft. Make sure that the blade is installed correctly. 8. Tighten nut counterclockwise against the blade while holding the locking rod: • If using a torque wrench and a 13 mm socket tighten to: 325 - 335 in•lb, 27 - 28 ft.•lb, 37 - 38 N•m. Fig. 9 Fig. 10 • Without a torque wrench, use a 13 mm closed- end or socket wrench, turning the nut until the blade retainer is snug against the shaft bushing. Make sure that the blade is installed correctly, then rotate the nut an additional 1/4 to 1/2 turn counterclockwise (Fig. 10). 9. Remove the locking rod from the locking rod slot. REMOVE THE CUTTING BLADE AND INSTALL THE CUTTING ATTACHMENT Remove the Cutting Blade 1. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 5). Clockwise Cutting Attachment 2. Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 11). 3. While holding the locking rod, loosen the nut on the blade by turning it clockwise with a 13 mm closed-end or socket wrench (Fig. 11). Blade Retainer 4. Remove the nut, blade retainer and blade. Store the nut and blade together for future use in a secure place. Store out of children's reach. Fig. 11 Fig. 12 Install the Cutting Attachment 5. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 5). Place the blade retainer on the output shaft with the flat surface against the output shaft bushing (Fig. 12). Screw the cutting attachment counterclockwise onto the output shaft. Tighten securely. NOTE: The blade retainer must be installed on the output shaft in the position shown for the cutting attachment to work correctly. 6. Remove the locking rod. 7. Install the cutting attachment shield. Refer to Remove and Install the Cutting Attachment Shield. OPERATING THE RAPID LINK™ SYSTEM The Rapid Link™ system enables the use of these optional Add-Ons. Trimmer AF720 Hedge Trimmer AH720* Brushcutter BC720* Cultivator GC720 Edger LE720* Pole Saw PS720 Straight Shaft Trimmer SS725 Turbo Blower TB720 * Do NOT use this Add-On with an electric powered unit. REMOVING THE ADD-ON 1. Turn the knob counterclockwise to loosen (Fig. 15). 2. Press and hold the release button (Fig. 13). 3. While firmly holding the upper shaft housing, pull the lower shaft housing straight out of the Rapid Link™ coupler (Fig. 14). Rapid Link™ Coupler Release Button Primary Hole Installing the Add-On NOTE: To make installing or removing the add-on easier, place the unit on the ground or on a work bench. 1. Turn knob counterclockwise to loosen (Fig. 15). 2. While firmly holding the add-on, push it straight into the Rapid Link™ coupler (Fig. 14). Guide Recess Fig. 13 Upper Shaft Housing Lower Shaft Housing Fig. 14 90˚ Edging Hole (Trimmer Only) NOTE: Aligning the release button with the guide recess will help installation (Fig. 13). 3. Turn the knob clockwise to tighten (Fig. 15). For decorative trimming/edging with the line cutting head, lock the release button into the 90° hole (Fig. 15). Knob Fig. 15 OIL AND FUEL INFORMATION WARNING: Overfilling oil crankcase may cause serious personal injury. Check and maintain the proper oil level in the crank case; it is important and cannot be overemphasized. Check the oil before each use and change it as needed. See Changing the Oil. 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 oil, can cause premature engine wear and failure. Use a high-quality SAE 30 weight oil of API (American Petroleum Institute) service class SF, SG, SH. Funnel Spout ADDING OIL TO CRANKCASE: INITIAL USE NOTE: This unit is shipped without oil. In order to avoid damage to the unit, put oil in the crankcase before you attempt to start the unit. Fig. 16 Your unit is supplied with one 3.04 fluid oz. (90 ml) bottle of SAE 30 SF, SG, SH oil (Fig. 16). NOTE: Save the bottle of oil. It can be used to measure the correct amount during future oil changes. See Changing the Oil. 1. Unscrew the top of the bottle of oil and remove the paper seal covering the opening. Replace the top. Next, cut the tip off the funnel spout (Fig. 16). 2. Tip unit so that the back of the engine is facing up in a vertical position. 3. Remove the oil fill plug from the crankcase (Fig. 18). 4. Pour the entire bottle of oil into the oil fill hole (Fig. 17). Fig. 17 NOTE: Never add oil to the fuel or fuel tank. 5. Wipe up any oil that may have spilled and reinstall the oil fill plug. Oil Fill Plug Check oil before each use and change as needed. Refer to Checking the Oil Level. RECOMMENDED FUEL TYPE Old fuel is the primary reason for improper unit performance. Be sure to use fresh, clean, unleaded gasoline. NOTE: This is a four cycle engine. In order to avoid damage to the unit, do not mix oil with gasoline. Definition of Blended Fuels O-Ring Oil Fill Hole Fig. 18 Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol or MTBE (ether). Alcoholblended fuel absorbs water. As little as 1% water in the fuel can make fuel and oil separate or form acids when stored. Use fresh fuel (less than 30 days old), when using alcohol-blended fuel. Using Blended Fuels If you choose to use a blended fuel, or its use is unavoidable, follow recommended precautions: • Always use fresh unleaded gasoline • Use the fuel additive STA-BIL® or an equivalent • Drain tank and run the engine dry before storing unit USING FUEL ADDITIVES WARNING: Add fuel in a clean, well ventilated outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate. WARNING: Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames at a distance from the area. 3