Ryobi RYAC130 Operation Manual - Page 18

MAINTENANCE WARNING: Before performing any maintenance, make sure the power supply is disconnected to avoid accidental starting and possible serious personal injury. WARNING: Always wear eye protection with side shields marked to comply with ANSI Z87.1. Failure to do so could result in objects being thrown into your eyes resulting in possible serious injury. WARNING: When servicing, use only authorized replacement parts. Use of any other parts can create a hazard or cause product damage. NOTICE: Periodically inspect the entire product for damaged, missing, or loose parts such as screws, nuts, bolts, caps, etc. Tighten securely all fasteners and caps and do not operate this product until all missing or damaged parts are replaced. Please contact customer service or an authorized service center for assistance. 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, oil, grease, etc. WARNING: Do not at any time let brake fluids, gasoline, petroleumbased products, penetrating oils, etc., come in contact with plastic parts. Chemicals can damage, weaken, or destroy plastic which can result in serious personal injury. NOTICE: Never use a hose, water, or any liquids to clean the lawn mower, as water can damage electronic components. Remove any buildup of grass and leaves on or around the motor cover. Wipe the mower clean with a dry cloth occasionally. LUBRICATION All of the bearings in this product are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further bearing lubrication is required. WARNING: Always protect hands by wearing heavy gloves and/or wrapping the cutting edges of the blade with rags and other material when performing blade maintenance. Contact with the blade could result in serious personal injury. REPLACING THE CUTTING BLADE See Figures 12 - 13. NOTE: Only use authorized replacement blades.  Stop the motor. Allow blade to come to a complete stop.  Disconnect the power supply.  Turn the mower on its side.  Wedge a block of wood between the blade and mower deck to prevent the blade from turning.  Loosen the blade nut by turning it counterclockwise (as viewed from bottom of mower) using a 17 mm wrench or socket (not provided).  Remove the blade nut and blade.  Place the new blade onto the shaft. Ensure blade is properly seated with the two blade posts inserted into the holes on the blade. Make sure it is installed with the curved ends pointing up toward the mower deck and not down toward the ground. When seated properly, the blade should be flat.  Replace the blade, then thread the blade nut onto the shaft and finger tighten. NOTE: Make certain all parts are replaced in the exact order in which they were removed.  Torque the blade nut down clockwise using a torque wrench (not provided) to ensure the nut is properly tightened. The recommended torque for the blade nut is 350 - 400 in. lbs. WARNING: Ensure blade is properly seated and the blade nut is tightened to the torque specifications above. Failure to properly attach the blade could cause it to come loose or detach and result in possible serious personal injury. STORING THE MOWER See Figure 14.  Disconnect power supply, and store in a secure location out of the reach of children.  Before storage, wipe any dirt or debris.  Turn mower on its side and clean grass clippings that have accumulated on the underside of the mower deck.  Wipe the mower clean with a dry cloth.  Check all nuts, bolts, knobs, screws, fasteners, etc., for tightness. 14 - English