Tanaka TCG24ECPSL Manual - Page 13

English Run the engine while adjusting the idling. (1) If the engine stops during idling Start the engine, and slowly turn the idle speed adjustment screw (T) in a clockwise direction until it is in a position at which the engine rotates smoothly. At that time, ensure that the cutting attachment is not spinning. (2) If the cutting attachment rotates during idling Slowly turn the idle speed adjustment screw (T) in a counter-clockwise direction until it is in a position at which the cutting attachment does not rotate. At that time, ensure that the rotation of the engine is smooth. NOTE A blocked fuel filter (13) can prevent the supply of fuel and cause a rotation malfunction of the engine. 13 WARNING ● If the cutting attachment still rotates after adjustment of the idle speed adjustment screw (T), immediately stop the engine and cease use, then contact the nearest Hitachi Authorized Service Center. Air filter (Fig. 17) The air filter (12) 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. Fig. 18 Spark plug (Fig. 19) 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. Re-adjust if necessary. The correct gap is 0.024˝ (0.6 mm). The spark plug should be replaced after about 100 operation hours or earlier if the electrodes are badly eroded. 12 Fig. 17 Cleaning the air filter Open the air filter cover and remove the air filter (12). 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. Fuel filter (Fig. 18) Remove the fuel filter (13) from the fuel tank, and replace it if it is dirty. 0.024˝ (0.6 mm) Fig. 19 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