Ryobi RY3716 Operation Manual - Page 38

MAINTENANCE CLEANING THE EXHAUST PORT, REPLACING MUFFLER AND SPARK ARRESTOR NOTICE: This product is equipped with a spark arrestor that has been evaluated by the USDA Forest Service; however, product users must comply with Federal, State, and local fire prevention regulations. Check with appropriate authorities. Contact customer service or a qualified service center to purchase a replacement spark arrestor. CLEAN THE CHAIN BRAKE LUBRICATE THE CHAIN BRAKE LINKAGE BRAKE BAND Fig. 71 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. The spark arrestor must be replaced every 50 hours to ensure proper performance of your product. Spark arrestors may be in different locations depending on the model purchased. Please contact your nearest service dealer for the location of the spark arrestor for your model. WARNING: Never run the chain saw 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. INSPECTING AND CLEANING CHAIN BRAKE See Figures 71 - 72. n Remove the clutch cover and clean the chain brake components. Check wear on the brake band and replace if worn or deformed. The band thickness should not be less than 0.024 in., or worn halfway through. CHAIN CATCHER Fig. 72 n Always keep the chain brake mechanism clean and lightly lubricate the linkage. n Always test the chain brake performance after servicing or cleaning. Refer to Operating Chain Brake for additional information. n Check the chain catcher and replace if d­ amaged. WARNING: Even with daily cleaning of the mechanism, the dependability of a chain brake to perform under field conditions cannot be certified. Keep the SAFE-T-TIP™ nose guard on the saw's guide bar and use proper cutting techniques. STORING THE CHAIN SAW (1 MONTH OR LONGER) n Drain all fuel from tank into a container approved for gasoline. Page 38 - English