Installing the Vacuum Bag Assembly (Optional for Model 310r) ......................................6 C. Installing the Adapter (Optional for Model 310r) ......................................7 D. Installing the Vacuum Tubes (Optional for Model 310r)....................................7-8 IV. Oil and Fuel Information ............................................9 V. Starting/Stopping Instructions..................................10 VI. Operating Procedures ..............................................11 A. Typical Operating Positions ................................11 B. Vacuum Operating Procedures (Optional for Model 310r) ....................................11 VII. Maintenance and Repair ....................................12-16 A. Maintenance Schedule ........................................12 B. Air Filter Maintenance ....................................12-13 C. Carburetor Adjustment ..................................13-15 D. Replacing the Spark Plug ....................................15 E. Inspecting/Cleaning the Muffler......................15-16 VIII. Cleaning and Storage ..............................................17 IX. Specifications ..........................................................17 X. Troubleshooting ........................................................18 XI. California Emission Control Warranty Statement ....19 XII. Warranty Statement ................................................20 California Proposition 65 Warning: 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 THE PURPOSE OF SAFETY SYMBOLS IS TO ATTRACT YOUR ATTENTION TO POSSIBLE DANGERS. THE SAFETY SYMBOLS, AND THE EXPLANATIONS WITH THEM, DESERVE YOUR CAREFUL ATTENTION AND UNDERSTANDING. THE SAFETY WARNINGS DO NOT BY THEMSELVES ELIMINATE ANY DANGER. THE INSTRUCTIONS OR WARNINGS THEY GIVE ARE NOT SUBSTITUTES FOR PROPER ACCIDENT PREVENTION MEASURES. SYMBOL MEANING WARNING: Failure to obey a safety warning can result in injury to yourself and others. NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment. FUELING AND PRE-OPERATION • Gasoline is extremely flammable and its vapors can explode if ignited. Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the fuel tank. Keep sparks and open flames away from the area. • Store the gasoline and fuel only in containers designed and approved for the storage of such materials. • Pressure can build up in the fuel tank. Loosen the fuel tank cap slowly to relieve any pressure in the tank. • Add fuel in a clean, well-ventilated area. Wipe up any spilled fuel immediately. If fuel has been spilled, allow it to dry completely before starting the engine. • Move the unit at least 10 ft (3 m) from the fueling point before starting the engine. • Thoroughly inspect the unit for loose or damaged parts before each use. Do not use until adjustments or repairs are made. • Avoid accidental starting. Be in the starting position whenever pulling the starting rope. • Keep all bystanders, especially children, and pets at least 30 ft (10 m) away from the area. DURING OPERATION • Wear safety glasses or goggles at all times when operating the unit. • Dress properly. Do not operate the unit when barefoot or wearing open sandals. Always wear sturdy, rubber- soled footwear. The use of gloves, ear/hearing protection, and long pants are recommended. • Do not wear loose-fitting clothing, or loose articles such as scarves, strings, chains, ties, etc. because they could get drawn into the air intake. Also make sure long hair does not get drawn into the air intake. • Keep hands, face and feet away from all moving parts. • Rotating impeller blades can cause severe injury. Stop the engine before opening the vacuum door or installing/ changing tubes. Do not put hands or any other object into the vacuum tubes while they are installed on the unit. • Do not touch the muffler or cylinder. These parts get extremely hot from operation and remain hot for a short time after the equipment is turned off. • Operate the unit only in a well-ventilated area, outdoors. Carbon monoxide exhaust fumes can be lethal in a confined area. • Inspect the area before starting the unit. Remove all debris and hard or sharp objects such as rocks, glass, wire, etc. • Do not point the blower in anyone’s direction or in the direction of windows. The blower can propel objects at high speed. • Do not wear rubber or other insulated gloves when using the unit to avoid static electricity shock. • Do not overreach. Keep proper footing and balance at all times. • Never run the unit without the proper equipment attach...