valutazioni - 4, GPA: 4.3
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Facilità d'uso
SR 430, SR 450 English Checking the Spark Plug 000BA039 KNA Engine Running Behavior If engine running behavior is unsatisfactory even though the air filter 1 is clean and the carburetor is properly adjusted, the cause may be the muffler. Have the muffler checked for contamination (carbonization) by your servicing dealer. STIHL recommends that you have N Clean dirty spark plug. N Check electrode gap (A) and 2 servicing and repair work carried out exclusively by an authorized STIHL servicing dealer. readjust if necessary – see "Specifications". N Use only resistor type spark plugs of the approved range. Rectify problems which have caused fouling of spark plug: Warning! – Too much oil in fuel mix. 002BA363 KN To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (1) – Dirty air filter. – Unfavorable running conditions, snugly onto spark plug terminal (2) of e.g. operating at part load. the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire. Installing the spark plug N Screw home the spark plug, fit the boot and press it down firmly. SR 430, SR 450 English Replacing the Starter Ropeand Rewind Spring Replacing the Starter Rope NUse a screwdriver or suitable pliers to remove the spring clip (3) from the starter post. 11 2 0002BA050 KN 1 N Take out the screws (1). N Remove the starter cover (2). The rewind spring may pop out and uncoil during this operation – take care to avoid the risk of injury. N Carefully remove the rope rotor with washer (4) and pawls (5). N Use a screwdriver to pry the rope out of the starter grip. N Remove the remaining rope from the rotor and starter grip. 213BA018 KN NThread the new rope through the starter grip and tie one of the special N Thread the end of the rope through the top of the guide bushing (6) and rope rotor (7) and secure it with a simple overhand knot. N Coat the rope rotor bearing bore with non-resinous oil. N Slip the rotor over the starter post (8) – turn it back and forth to engage the anchor loop of the rewind spring. knots shown. N Pull the knot back into the grip. SR 430, SR 450 English N Refit the pawls (5) in the rotor. N Fit the washer (4) on the starter post. N Use a screwdriver or suitable pliers to install the spring clip (3) on starter post and engage it on the pawls' peg – the spring clip must point counterclockwise as shown in the illustration. Tensioning the rewind spring N Make a loop in the unwound starter rope and use it to turn the rope rotor six full revolutions in the direction of the arrow. N Hold the rotor steady. N Pull out and straighten the twisted rope. N Let go of the rotor. N Release the rope slowly so that it winds onto the rotor. The starter grip must locate firmly in the guide bushing. If the grip droops to one side: Add one more turn on the rope rotor to increase spring tension. When the starter rope is fully extended it must still be possible to rotate the rotor at least another half turn. If this is not the case, the spring is overtensioned and could break. N Take one turn of the rope off the rotor. Replacing a broken rewind spring The bits of spring may still be under tension and could fly apart when you take them out of the starter cover – wear face protection and work gloves. N Remove the rope rotor. NUse a screwdriver to carefully remove the spring housing (1) and the parts of the broken spring. NLubricate the new spring with a few drops of non-resinous oil. N Position the replacement spring with spring housing in the starter cover. N Fit the rope rotor, tension the rewind spring, fit the starter cover and secure it in position. SR 430, SR 450 English Inspections and Maintenance by Dealer Spark Arresting Screen in Muffler Spark arresting screen in muffler (not all markets) N If the engine is down on power, check the spark arresting screen in the muffler. STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer. SR 430, SR 450 English Maintenance and Care The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly. before starting workafter finishing work or dailyafter each refueling stopweeklymonthlyevery 12 monthsif problemif damagedif required Complete machine Visual inspection (condition, leaks) X X Clean X Control handle Check operation X X Air filter Clean X Replace X Pickup body in fuel tank Check X Replace X X Fuel tank Clean X Carburetor Check idle adjustment X X Readjust idle X Spark plug Readjust electrode gap X Replace after every 100 operating hours Cooling inlets Visual Inspection X Clean X Sparl arresting screen1) in muffler Check X Have cleaned or replaced ...
Questo manuale è adatto anche per i modelli :Sistemi di ventilazione - STIHL SR 450 (2.92 mb)