valutazioni - 2, GPA: 3.5
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Facilità d'uso
Use of parts manufactured by others may cause serious or fatal injury. ! Warning! Always stop the engine and ensure that the chain is stopped before making any adjustments, maintenance or repair work, changing the saw chain or cleaning the saw. Do not attempt any maintenance or repair work not described in your Owner's Manual. Have such work performed at your STIHL service shop only. ! Warning! Never test the ignition system with ignition wire terminal removed from sparkplug or with unseated spark plug, since uncontained sparking may cause a fire. ! Warning! To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot snugly onto spark plug terminal of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached. ) A loose connection between spark plug terminal and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire. Keep spark plug clean, and make sure ignition lead is in good condition. ! Warning! Do not operate your chainsaw if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss. Never touch a hot muffler or burn will MS 290, 310, 390 English / USA Mounting the Bar and Chain result. If your muffler was equipped with a spark-arresting screen to reduce the risk of fire (e. g. in the USA, Canada and Australia) , never operate your saw if the screen is missing or damaged. Remember that the risk of forest fires is greater in hot or dry weather. Keep the chain, bar and sprocket clean; replace worn sprockets or chains. Keep the chain sharp. You can spot a dull chain when easy-tocut wood becomes hard to cut and burn marks appear on the wood. Keep the chain at proper tension. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use. ! Warning! In order for the chain brake on your STIHL chainsaw to properly perform its function of reducing the risk of kickback and other injuries, it must be properly maintained. Like an automobile brake, a chainsaw chain brake incurs wear each time it is engaged. The amount of wear will vary depending upon usage, conditions under which the saw is used and other factors. Excessive wear will reduce the effectiveness of the chain brake and can render it inoperable. For the proper and effective operation of the chain brake the brake band and clutch drum must be kept free of dirt, grease and other foreign matter which may reduce friction of the band on the drum. For these reasons, each STIHL chainsaw should be returned to trained personnel such as your STIHL servicing dealer for periodic inspection and servicing of the brake system according to the following schedule: Heavy usage - every three months, Moderate usage - twice a year, Occasional usage - annually. The chainsaw should also be returned immediately for maintenance whenever the brake system cannot be thoroughly cleaned or there is a change in its operating characteristics. For any maintenance please refer to the maintenance chart and to the warranty statement near the end of this manual. Additionally, the daily maintenance schedule for your chainsaw set forth in your STIHL Owner's Manual should be strictly followed. Store chainsaw in a dry place and away from children. Before storing for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in this manual). 001BA105 KN 1 2 3 a t = a : 2 You can run chains of different pitches on this chainsaw – depending on the chain sprocket ( see “ Specifications” ) : The chain pitch (1) must match the pitch of the sprocket and the guide bar (for Rollomatic). The drive link gauge (2) must match the bar groove width (3) . The pitch is marked on the chain sprocket and guide bar in inches (e. g. 3/ 8 or .325). The groove width is marked on the guide bar in millimeters (e.g. 1.6) . If non- matching components of the wrong pitch or drive link gauge are run together on the same machine they may be damaged beyond repair after a short period of operation. MS 290, 310, 390 English / USA 143BA034 KN001BA108 KN 6 9 77 8 10 001BA109 KN : Unscrew the nuts and take off the : Disengage the chain brake: Pull : Fit the guide bar over the studs (7) – chain sprocket cover. hand guard (6) toward front handle. cutting edges on top of bar must point to right – and engage the peg of the tensioner slide in locating hole (8) – place the chain over 4 sprocket (9) at the same time. 143BA003 KN : Now turn tensioning screw (10) 5 clockwise until there is very little chain sag on the underside of the bar – and the drive link tangs are located in the bar groove. : Refit the sprocket cover – and screw on the nuts only finger 001BA107 KN Turn screw (4) counterclockwise Wear work gloves to protect your until the tensioner slide (5) butts hands from the sharp cutters. tight. : : Go to “Tensioning the Saw Chain”. against left end of housing slot. : Fit the c...