Évaluations - 2, GPA: 3.5
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Facilité d'utilisation
If your daily working time is longer or operating conditions are difficult ( very dusty work area, resin- rich wood, tropical wood, etc. ), shorten the specified intervals accordingly. If you only use the saw occasionally, extend the intervals accordingly. before starting workafter finishing work or dailyafter each refueling stopweeklymonthlyevery 12 monthsif problemif damagedif required Cooling inlets Clean X Air inlet on fan housing Clean X X X Cylinder fins Clean X X X Preseparator port and carburetor body Clean X "Carb preheat" shutter and preheating port Clean (winter operation only) X Carburetor Check idle adjustment – chain must not rotate X X Readjust idle X Spark plug Readjust electrode gap X Replace after every 100 operating hours All accessible screws and nuts (not adjusting screws) 3) Retighten X Spark arresting screen in muffler Check X Clean or replace X Combustion chamber Decoke after first 139 hours of operating, then every 150 hours X Chain catcher Check X Replace X Safety labels Replace X 1) STIHL recommends a STIHL servicing dealer. 2) see chapter on " Chain Brake" 3) Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation. MS 291 C-Q English Main Parts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 # 5 9 1 1 23 20 14 15 22 11 8 25 24 2 21 18 3 2710BA005 KN 6 12 13 7 16 17 19 1 4 # 9 7 10 Shroud Lock Carburetor Adjusting Screws Fuel Pump Shutter (Summer and Winter Operation) Chain Brake Chain Sprocket Chain Sprocket Cover Chain Catcher Adjusting Wheel for Quick Chain Tensioner Handle of Wingnut for Quick Chain Tensioner Bumper Spike Guide Bar Oilomatic Saw Chain Oil Filler Cap Muffler with Spark Arresting Screen Front Hand Guard Front Handle (Handlebar) Spark Plug Boot Starter Grip Fuel Filler Cap Master Control Lever Throttle Trigger Throttle Trigger Lockout Rear Handle Rear Hand Guard Serial Number MS 291 C-Q English Definitions 11 Bumper Spike 21 Master Control Lever 1 Shroud Lock Lock for the shroud. 2 Carburetor Adjusting Screws For tuning the carburetor. 3 Fuel Pump Provides additional fuel feed for a cold start. 4 Shutter (Summer and Winter Operation) With summer and winter positions. Carburetor is heated in winter position. 5 Chain Brake A device to stop the rotation of the chain. Is activated in a kickback situation by the operator's hand or by inertia. 6 Chain Sprocket The toothed wheel that drives the saw chain. 7 Chain Sprocket Cover Covers the sprocket. 8 Chain Catcher Helps to reduce the risk of operator contact by a chain when it breaks or comes off the bar. 9 Adjusting Wheel for Quick Chain Tensioner Permits precise adjustment of chain tension. 10 Handle of Wingnut for Quick Chain Tensioner Has to be released to tension chain with adjusting wheel. Toothed stop for holding saw steady against wood. 12 Guide Bar Supports and guides the saw chain. 13 Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive links. 14 Oil Filler Cap For closing the oil tank. 15 Muffler with Spark Arresting Screen Muffler reduces engine exhaust noise and diverts exhaust gases away from operator. Spark arresting screen is designed to reduce the risk of fire. 16 Front Hand Guard Provides protection against projecting branches and helps prevent left hand from touching the chain if it slips off the handlebar. It also serves as the lever for chain brake activation. 17 Front Handle ( Handlebar) Handlebar for the left hand at the front of the saw. 18 Spark Plug Boot Connects the spark plug with the ignition lead. 19 Starter Grip The grip of the pull starter, for starting the engine. 20 Fuel Filler Cap For closing the fuel tank. Lever for choke control, starting throttle, run and stop switch position. 22 Throttle Trigger Controls the speed of the engine. 23 Throttle Trigger Lockout Must be depressed before the throttle trigger can be activated. Engages and disengages the Quickstop Plus chain brake. 24 Rear Handle The support handle for the right hand, located at the rear of the saw. 25 Rear Hand Guard Gives added protection to operator's right hand. Guide Bar Nose The exposed end of the guide bar. (not illustrated, see chapter " Tensioning the Saw Chain") Clutch Couples engine to chain sprocket when engine is accelerated beyond idle speed. (not illustrated) Anti-Vibration System The anti-vibration system includes a number of anti-vibration elements designed to reduce the transmission of vibrations created by the engine and cutting attachment to the operator's hands. (not illustrated) MS 291 C-Q English Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. Category A = 300 hours B = 125 hours C = 50 hours Engine Fuel system All position diaphragm carburetor with integral fuel pump Fuel tank capacity: 16.9 fl.oz (0.50 l) Chain lubrication Fully automati...