Tanaka TED-270PFDH Owner's Manual - Page 11

TED-270 T Fig. 3-1 Fig. 3-2 Fig. 3-3 Fig. 3-4 Fig. 3-4B 5. Maintenance MAINTENANCE. REPLACEMENT, OR REPAIR OF THE EMISSION CONTROL DEVICES AND SYSTEM MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL. Carburetor adjustment (Fig. 3-1) WARNING! The bit may be spinning during carburetor adjustments. WARNING! Never start the engine without the complete clutch cover and gear case assembled! 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 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 bit will not rotate. If adjustment is required, close (clockwise) the Tscrew, with the engine running, until the bit starts to rotate. Open (counter-clockwise) the screw until the bit stops. You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the bit starts to rotate. If the bit still rotates after idle speed adjustment, contact Tanaka dealer. WARNING! When the engine is idling the bit must under no circumstances rotate. 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. 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 by a new one. A damaged filter must always be replaced. NOTE! Saturate the element in 2 cycle oil or the equivalent. Squeeze the element to distribute the oil completely and to remove any excess oil. 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 0.6 mm (.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. Gear case (Fig. 3-4, 4B) Apply a good quality lithium based grease through the grease fitting. Lubrication should be applied at 50 hour intervals and more frequent at heavy use. GB-10