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(Fig. 2-7N) IF THE SAW GETS STUCK Stop the engine. Raise the log or change its position, using a thick branch or pole as a lever. Do not try to pull the saw free. If you do, you can deform the handle or be injured by the saw chain if the saw is suddenly released. 11 custsvc@tanaka-ism.com Owner.s ManualECS-3301/3351 5. Maintenance MAINTENANCE, REPLACEMENT, OR REPAIR OF THE EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL. Carburetor adjustment (Fig. 3-1) WARNING! Never start the engine without the complete clutch cover. Otherwise the clutch can come loose and cause personal injuries. In the carburetor, fuel is mixed with air. When the engine is test run at the factory, the carburetor is basically adjusted. A further adjustment may be required, according to climate and altitude. The carburetor has one adjustment possibility: T = Idle speed adjustment screw. Idle speed adjustment (T) Check that the air filter is clean. When the idle speed is correct, the cutting attachment will not rotate. If adjustment is required, close (clockwise) the T-screw, with the engine running, until the cutting attachment starts to rotate. Open (counter-clockwise) the screw until the cutting attachment stops. You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the cutting attachment starts to rotate. If the cutting attachment still rotates after idle speed adjustment, contact your service workshop. NOTE! The L and H screws should only be adjusted by an Authorized Tanaka Dealer. The standard openings (returns) of L/H screws from lightly seated positions are as follows: WARNING! When the engine is idling the cutting attachment must under no circumstances rotate. NOTE FOR THE US MARKET!! (Fig. 3-1C) We would like to inform that the machines, which carry the following label on the unit are different from ones for other market in carburetor adjustment. Adjustment of Standard openings of L/H screws are not necessary. They are preset and fixed. Do not turn L/H screw fully but 90 degrees at most. 12 custsvc@tanaka-ism.com Owner.s ManualECS-3301/3351 ECS-3301/3351 Air filter (Fig. 3-2) The air filter must be cleaned from dust and dirt in order to avoid: . Carburetor malfunctions. . Starting problems. . Engine power reduction. . Unnecessary wear on the engine parts. . Abnormal fuel consumption. Clean the air filter daily or more often if working in exceptionally dusty areas. Cleaning the air filter Remove the air filter cover and the filter (1). Rinse it in warm soap suds. Check that the filter is dry before reassembly. An air filter that has been used for some time cannot be cleaned completely. Therefore, it must regularly be replaced with a new one. A damaged filter must always be replaced. Spark plug (Fig. 3-3) The spark plug condition is influenced by: . An incorrect carburetor setting. . Wrong fuel mixture (too much oil in the gasoline) . A dirty air filter. . Hard running conditions (such as cold weather). These factors cause deposits on the spark plug electrodes, which may result in malfunction and starting difficulties. If the engine is low on power, difficult to start or runs poorly at idling speed, always check the spark plug first. If the spark plug is dirty, clean it and check the electrode gap. Readjust if necessary. The correct gap is 0.6mm (.024.). The spark plug should be replaced after about 100 operation hours or earlier if the electrodes are badly eroded. NOTE! In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this machine was originally equipped with resistor spark plug, use same type of spark plug for replacement. 13 custsvc@tanaka-ism.com Owner.s ManualECS-3301/3351 Oiler port (Fig. 3-4) Clean the chain Oiler port (1) whenever possible. ECS-3301/3351 Oiler port (Fig. 3-4) Clean the chain Oiler port (1) whenever possible. Guide bar (Fig. 3-5) Before using the machine, clean the groove and oiler port (1) in the bar with the special gauge offered as an optional accessory. Side case (Fig. 3-6) Always keep the side case and drive area clean of saw dust and debris. Periodically apply oil or grease to this area to protect from corrosion as some trees contain high levels of acid. Fuel filter (Fig. 3-7) Remove the fuel filter from the fuel tank and thoroughly wash it in solvent. After that, push the filter into the tank NOTE! If the filter is hard due to dust and dirt, replace it. Chain oil filter (Fig. 3-8) Remove the oil filter and thoroughly wash it in solvent Cleaning the cylinder fins (Fig. 3-9) When wood chips are caught between cylinder fins (1), the engine may overheat, resulting in lower output. To avoid this, always keep cylinder fins and fan case clean. Every 100 Operating hours, or once a year (more often if conditions require), clean fins and external surfaces of engi...

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