Ryobi RY09466A User Manual 3 - Page 14

MAINTENANCE WARNING: When servicing, use only identical replacement parts. Use of any other parts may 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, 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 may result in serious personal injury. You can often make adjustments and repairs described here. For other repairs, have the blower serviced by an authorized service center. CLEANING THE AIR FILTER See Figure 10 - 11. For proper performance and long life, keep air filter clean.  Remove the air filter cover by turning the dial counter clockwise while gently pulling on the cover.  Rinse filter with clean water.  Gently squeeze filter until excess water is removed. Replace filter.  Place the air filter cover back on the unit. Turn dial clock- wise until cover is secure. 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, check valve may be faulty or filter clogged. Replace fuel cap if required. SPARK PLUG REPLACEMENT This engine uses a Champion RY4C or equivalent spark plug with .025 in. electrode gap. Use an exact replacement and replace annually. WARNING: Be careful not to cross-thread the spark plug. Crossthreading will seriously damage the product. CHANGING ENGINE LUBRICANT See Figures 12 -13. WARNING: Do not change engine lubricant while it is hot. Accidental contact with hot engine lubricant could result in serious burns. For best performance, engine lubricant should be changed after every 25 hours of operation. To change the engine lubricant:  Stop the engine. Allow the engine to cool completely before proceeding.  Remove the screw from the top engine cover and set aside.  Remove the screws from engine cover. Remove the cover and set aside.  Disconnect the spark plug wire.  Remove the oil fill cap/dipstick.  Tip blower on its side and allow lubricant to drain from the oil fill hole into an approved container. NOTE: Drain the lubricant while the engine is still warm but not hot. Warm lubricant will drain quickly and more completely. 10 - English