Ryobi RY08420 Operation Manual - Page 12

MAINTENANCE WARNING: When servicing, use only identical replacement parts. Use of any other parts can create a hazard or cause product damage. WARNING: Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with hearing protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries. WARNING: Before inspecting, cleaning, troubleshooting, or servicing the machine, shut off engine, wait for all moving parts to stop, and disconnect spark plug wire and move it away from spark plug. Failure to follow these instructions can result in serious personal injury or property damage. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, lubricant, grease, etc. WARNING: Do not at any time let brake fluids, gasoline, petroleumbased products, penetrating lubricants, etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which can result in serious personal injury. Only the parts shown on the parts list are intended to be repaired or replaced by the customer. All other parts should be replaced at an Authorized Service Center. SPARK PLUG This engine uses a Champion RCJ4 or equivalent spark plug with .025 in. electrode gap. Use an exact replacement and replace annually, or more frequently if necessary. notice: Be careful not to cross-thread the spark plug. Crossthreading will seriously damage the product. CLEANING THE EXHAUST PORT NOTE: Depending on the type of fuel used, the type and amount of lubricant used, and/or your operating conditions, the exhaust port, muffler, and/or spark arrestor screen may become blocked with carbon deposits. If you notice a power loss with your gas powered tool, you may need to remove these deposits to restore performance. We highly recommend that only qualified service technicians perform this service. WARNING: Never run the blower without a muffler equipped with a spark arrestor in place. Failure to do so could result in a fire that could cause serious personal injury. FUEL CAP, tank, and lines WARNING: Check for fuel leaks. A leaking fuel cap, tank, or lines are a fire hazard and must be replaced immediately. If you find any leaks, correct the problem before using the product. Failure to do so could result in a fire that could cause serious personal injury. The fuel cap contains a non-serviceable filter and a check valve. A clogged fuel filter will cause poor engine performance. If performance improves when the fuel cap is loosened, the check valve may be faulty or filter clogged. Replace the fuel cap if required. STORING THE PRODUCT  Clean all foreign material from the product. Store it in a well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts.  Abide by all Federal and local regulations for the safe storage and handling of gasoline. When storing 1 month or longer:  Drain all fuel from tank into a container approved for gasoline. Run engine until it stops. HIGH ALTITUDE ENGINE OPERATION Please have an authorized service center adjust this engine if it is to be run above 2000 feet. Failure to do so may result in poor engine performance and increased emissions. An engine adjusted for high altitudes can not be run at 2000 feet or lower. In doing so, the engine will overheat and cause serious engine damage. Please have an authorized service center restore high altitude modified engines to the original factory specification before operating below 2000 feet. 10 - English