Ryobi RY3716 Operation Manual - Page 34

MAINTENANCE WARNING: Although the guide bar comes with a SAFET-TIP™ antikickback device already installed, check the tightness of the mounting screw before each use. Use the following instructions to tighten the mounting screw of the nose guard. These are specially hardened screws. If you cannot install the screw tightly, replace both the screw and the SAFE-T-TIP™ before further operation. NOTE: Do not replace the screw with an ordinary screw. Use only identical replacement parts from the manufacturer when replacing parts. In addition to preventing chain contact with solid objects at the nose of the bar, the SAFE-T-TIP™ also helps keep the chain away from abrasive surfaces, such as the ground. Keep it on the right hand side of the bar where it will be between the chain and the ground during flush-with-ground cutting. The mounting screw requires a 5/16 in. wrench (or adjustable wrench) to achieve the recommended torque of 35 to 45 in.lb. A torque within this range can be achieved by using the following method. n Tighten the screw with wrench until snug. n From the snug position, tighten the screw an additional 3/4 of a turn using a wrench. CLEANING THE AIR FILTER See Figures 60 - 61. n Activate chain brake. n Remove the air filter cover by rotating the knob counterclockwise. n Remove the air filter. n Tap a corner of the filter against a hard surface to dislodge dust from the filter surface. n Using a flat blade screwdriver, pry apart the filter cover. n To clean the mesh area of the air filter, blow compressed air on the inside of the air filter to send dust and dirt toward the outside. NOTE: Always wear eye protection when using compressed air to avoid eye injury. AIR FILTER COVER KNOB AIR FILTER Fig. 60 FLAT BLADE SCREWDRIVER AIR FILTER Fig. 61 n Reassemble the filter halves by pressing around the rim until the filter clicks back together. n Reinstall the air filter. NOTICE: Make sure the air filter is correctly placed in the air filter cover before reassembly. Never run the engine without the air filter, as this may cause serious damage to the chain saw. n Reinstall the air filter cover and rotate knob clockwise to secure. Page 34 - English