Assessments - 2, GPA: 3.5
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Facilidade de uso
-With the engine running at moderate speed, press the hand guard (C/1) in the direction of the arrow with the back of your hand until the chain brake engages. The chain should stop immediately. -Immediately release the throttle and release the chain brake. IMPORTANT: If the chain does not stop immediately when you test the chain brake, do NOT use the saw! Take the saw to a MAKITA service center. Adjusting the carburetor CAUTION: Optimum perfornance can only be achieved if the carburetor is adjusted correctly. For this work, which should be carried out by an expert, the engine must be warmed up for a period of 3-5 min. and the air filter must be clean. The carburetor has been adjusted by MAKITA on the basis of atmosheric pressure conditions at sea level. Other atmospheric pressure conditions or the running-in process of a new engine may require readjustment of the carburetor. It is urgently recommended to use a revolution indicator (O/1) (order number 950 233 210) in order to achieve a correct adjustment of the carburetor. Adjust the carburetor using a 4 mm screwdriver. The screwdriver shown (O/2) (order number 944 340 001) has a molded-on lug to assist in adjustment. For adjusting the carburetor correctly the following steps must be carried out: 1. Warm up engine 2. Switch off engine 3. Basic adjustment 4. Start engine 5. Set idle speed STOP 1 2 6. Adjust speed 7. Check idling speed 8. Check acceleration 9. Check max. speed or output 10. Repeat adjustment procedure starting with step 5, until idling speed, max. speed and acceleration are reached with the adjustment made. Never work with the chain saw withoute sufficient chain lubrication. Otherwise the service life of the chain and guide bar will be reduced. Before starting work check the oil level in the tank and the oil feed. Check the oil feed rate as described below: -Start the chain saw. -Hold the running chain saw approx. 15 cm above a trunk or the ground (use an appropriate base). If the lubrication is sufficient, you will see a light oil trace because oil will be flung off the sawing device. 3 4speedO 12 Basic adjustment (step 3) STOP -First, carefully turn the 2 adjusting screws for the main jet (O/3) and the idle jet (O/4) to the right (clockwise) until you feel them stop. -Now turn both screws one turn to the left (counter-clockwise). 2 Set idle speed (step 5) 1 -If the chain turns when the engine is idling, unscrew the throttle-valve stop screw (O/speed) until the chain stops. If the engine runs unevenly, screw the screw (O/speed) back in. -Idling speed should be 2,600 rpm. Adjust speed (output) (step 6) -Adjust the speed by adjusting the main jet screw (O/3) to 11,500 rpm (DCS 340, 341), 12,000 rpm (DCS 400, 401). Check idle speed (item 7) -After having adjusted the max. speed ensure the idle speed is set to 2,600 1rpm. (the chain must not turn). Use the idle jet screw (O/4) to regulate it. Turn in the screw (O/4) to speed up, and turn out the screw (O/4) to speed down the engine. Check acceleration (item 8) -Now check the acceleration, i. e. the time necessary for speeding up from idle speed to max. speed. To do this, press the throttle lever hard. -If the acceleration is too low, turn out the idle jet screw (O/4) approx. 1/8 rotation. Do not run the engine without load a high speed, open throttle fully only, if you are sawing! Working in winter A subfreezing operationnormal operation B 1 2 3 In order to prevent carburetor icing in conditions of low temperature combined with high humidity, and in order to get up to operating temperature faster in subfreezing temperatures, heated air can be taken from the cylinder (marking (circled) on insert in "snowflake" position). At temperatures above freezing the carburetor must NOT be fed heated air (marking (circled) on insert in "sun" position). Failure to follow these instructions can lead to damage to the cylinder and piston! MAINTENANCE Sharpening the saw chain STOP CAUTION: Before doing any work on the guide bar or chain, always switch off the engine and pull the plug cap off the spark plug (see "Replacing the spark plug"). Always wear protective gloves! . . C The chain needs sharpening when: -The sawdust produced when sawing damp wood looks like wood flour. -The chain penetrates the wood only under great pressure. -The cutting edge is visibly damaged. -The saw is pulled to the left or right when sawing. This is caused by uneven sharpening of the chain. Important: Sharpen frequently, but without removing too much metal! Generally, 2 or 3 strokes of the file will be enough. Have the chain resharpened at a service center when you have already sharpened it yourself several times. -Remove the filter cover (B/1). -Position the universal wrench (B/2) as shown above and push the insert (B/3) out by tapping the wrench. -Put the insert (B/3) back in in the appropriate position, i.e. with the marking next to the sun symbol for normal operation or the snowflake symbol for subfreezing operation. -Replace filte...