Stihl MS 150 C-E Instruction Manual - Page 48
Tensioning the Saw Chain
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English Definitions 1 Control Handle The support handle for the right hand, located on the top of the saw. 2 Throttle Trigger Lockout Must be depressed before the throttle trigger can be activated. 3 Master Control Lever Lever for choke control, starting throttle, run and stop switch position. 4 Throttle Trigger Controls the speed of the engine. 5 Carburetor Adjusting Screws For tuning the carburetor. 6 Spark Plug Boot Connects the spark plug with the ignition lead. 7 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. 8 Chain Sprocket Cover Covers the clutch and chain sprocket. 9 Chain Sprocket The toothed wheel that drives the saw chain. 10 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. 11 Chain Tensioner Permits precise adjustment of chain tension. 12 Chain Catcher Helps to reduce the risk of operator contact by a chain when it breaks or comes off the bar. 13 Bumper Spike Toothed stop for holding saw steady against wood. 14 Guide Bar Supports and guides the saw chain. 15 Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive links. 16 Oil Filler Cap For closing the oil tank. 17 Fuel Filler Cap For closing the fuel tank. 18 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. 19 Front Handle (Handlebar) Handlebar for the left hand at the front of the saw. 20 Starter Grip The grip of the pull starter, for starting the engine. 21 Choke Lever Eases engine starting by enriching mixture. 22 Fuel Pump Provides additional fuel feed for a cold start. 23 Carburetor Box Cover Covers the air filter and the carburetor. 24 Carburetor Box Cover Twist Lock Lock for carburetor box cover. 25 Ring for Rope Pull-out ring for attaching rope. 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) 46 MS 150 TC