Assessments - 2, GPA: 4
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Facilidade de uso
Keep in mind that the wood is heavy and that it will bend and pinch the saw if improperly supported. The trunk will weaken at the point where you make the cut unless the tree is lying on perfectly flat ground or supported as shown. If you make the cut with the tree on the ground, don’t let the saw’s chain dig into the earth; it is harmful for the saw, and you stand a good chance of being struck by flying debris. To cut the trunk, use the bucking and two-cut sequence shown. The first cut should be no deeper than one-third the trunk diameter. WARNING: KICKBACK IS DANGEROUS Kickback is generated when the rotation of the chain is arrested for some reason. The most dangerous effect of this action occurs when the nose of the bar contacts another object, the chain is momentarily stopped and all the energy of the engine throws the bar upwards and backwards towards the operator. The chain saw industry and government agencies have attempted to presecribe various safety devices, but the best protection is to avoid kickback. Comply with the Safety Precautions as listed on page 2 of this manual. • When the bar nose hits another tree, etc. 10 The following features are recommended for this model as Kickback Safety Features. • Double Guard Low Kick Type Guide Bar or Asymmetrical Low Kick Type Guide Bar Note: You saw chain can be equipped with either of these bars. Guide a Double Guard Reduced nose radius NOTE: Replacement Guide Bars The following guide bars may be considered to have equivalent kickback energy. • Sprocket nose guide bars o fthe same length and nose radius, same pitch and having the same number of teeth. • A hard nose guide bar having the same length and nose radius as a sprocket nose bar. • Low Kick Guard Link Type Saw Chain The low kick guard link chain must be maintained correctly. Follow instruction “SETTING THE CHAIN” in operator’s manual. • Front Handle Guard The front handle guard must be installed correctly and kept in good condition. • Chain Brake The chain brake is available as a standard feature on the P-type model. Chain brak must be maintained correctly. Follow instruction “CORRECT USE OF CHAIN BRAKE” in operator’s manual. CAUTION !! The consequences of using improper replacement components and of removing safety devices may result in serious or fatal injury 11 MAINTENANCE AND CARE Air filter Air cleaner cover Oil discharge adjusting screw Oil port Oil strainer Fuel strainer Oil holes Groove Sprocket AIR FILTER • Check before every use. • Pull choke all the way out (Close position). • Loosen bolt, and remove air cleaner cover and filter. • Brush off dust lightly, or wash it in water and detergent if necessary. Dry it completely before installation. AUTOMATIC OILER • The discharge volume of the automatic oiler is adjusted to 3 to 4 cc/min (at 7000 rpm), prior to shipment from factory. • Always check oil discharge when in use. OIL STRAINER • Check periodically. • Do not allow dust to enter into oil tank. • Clogged oil strainer will affect the normal lubricating system. • Pick it up through oil port. • If the strainer is dirty, wash it in gasoline. • When the inside of the tank gets dirty, it can be cleaned by rinsing the tank out with gasoline. FUEL STRAINER • Check periodically. • Do not allow dust to enter fuel tank. • Clogged strainer will cause difficulty in starting engine or abnormalities in engine perfomance. • Pick up the fuel strainer through fuel inlet port with a piece of steel wire or the like. • When the strainer is dirty, wash it in suitable cleaning fluid. • When the inside of the fuel tank is dirty, it can be cleaned by rinsing the tank out with suitable cleaning fluid. GUIDE BAR AND OIL HOLES • Clean before starting work. • Clean the groove of the guide bar with, for example, a small screw driver. • Clean oil holes with a wire. • Reverse guide bar periodically. SPROCKET • The damaged sprocket will cause premature damage or wear of saw chain. • When the sprocket has worn out 0.5 mm (.020 in.) or more, replace it. • Check sprocket when you install new chain. Replace it if worn. • Clean sprocket, clutch and bar mount area before installation of bar. 12 0.65 mm (.026”) Choke button Grommet cover Idle adjustment screw 0.65 mm (.026”) Choke button Grommet cover Idle adjustment screw Locating slots for cap slots Hi Lo FIG. 4 SPARK PLUG • Check periodically. • Gap = 0.65 mm (.026”) • Replace if either electrode is worn or if the insulator is fouled by oil or other deposits. • TORQUE = 145 ~ 155 kg•cm (125 ~ 135 in. lb.) CAUTION Do not over torque. CARBURETOR ADJUSTMENT Non Emission Models Tools Required: Tachometer P/N 99051130010 GENERAL ADJUSTMENTS • Idle adjustment screw is adjusted not to rotate the saw chain at idling speed, prior to shipment from factory. • Remove grommet cover over “H” and “L” limiter needles. 1. Turn Hi and Lo speed mixture needles iclockwise (CW) until lightly seated. IMPORTANT: Do not over tighten mixture needles, otherwise needle tip and carburetor body seat d...