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Manafacture: Tanaka File size: 390.67 kb File name: TPE-250PFthru270s.pdf Language of manual:

Maintenance. MAINTENANCE, REPLACEMENT, OR RE PAIR OF THE EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL. Carburetor adjustment (Fig. 3-1) WARNING! The cutting attachment may be spinning during carburetor adjustments. WARNING! Never start the engine without the complete clutch cover and tube 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 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 blade will not rotate. If adjustment is required, close (clockwise) the T-screw, with the engine running, until the blade starts to rotate. Open (counterclockwise) the screw until the blade stops. You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the blade starts to rotate. If the blade still rotates after idle speed adjustment, contact your service workshop. NOTE! Standard Idle rpm is 2500-3000 rpm. WARNING! When the engine is idling the blade 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 (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 by a new one. A damaged filter must always be replaced. Fuel filter (Fig. 3-2B) Drain all fuel from fuel tank and pull fuel filter line from tank. Pull filter element out of holder assembly. Replace filter if it appears to be discolored or hardened from use. The filter has a white, felt-like appearance when new. 8 custsvc@tanaka-ism.com Owner.s ManualTPE-2501,TPE-2510,TPE-270PF/PN,TPE-250PF TPE-2501,TPE-2510,TPE-270PF/PN,TPE-250PF 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. 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. Muffler (Fig. 3-3B) Remove the muffler and clean out any excess carbon from the exhaust port or muffler inlet every 100 hours of operation. Cylinder (Engine cooling) (Fig. 3-3C) The engine is air cooled, and air must circulate freely around engine and over cooling fins on cylinder head to prevent overheating. Every 100 Operating hours, or once a year (more often if conditions require), clean fins and external surfaces of engine of dust, dirt and oil deposits which can contribute to improper cooling. NOTE! Do not operate engine with engine shroud or muffler guard removed as this will cause overheating and engine damage. Blade (1) (Fig. 3-4) WARNING! • Wear protective gloves when handling or performing maintenance on the blade. • When replacing blade, purchase one recommended by TANAKA, with a 25.4mm (one inch) fitting hole. • Use correct blade for the type of work. • When replacing blade, use appropriate tools. • Discard blades that are bent, warped, cracked, broken or damaged in any way. Angle transmission (Fig. 3-5) Check angle transmission or angle gear for grease level about every 50 hours of operation by removing the grease filler plug on the side of angle transmission. If no grease can be seen on the flanks of the gears, fill the transmission with a quality lithium based multipurpose grease up to 3/4. Do not completely fill the transmission. Spark Arrestor If your unit comes with spark arrestor screen and yet your local regulation requires use of spark arrestor for prevention against a possible fire, please attach it to the muffler by removing muffler protector and other related parts. (The spark arrestor meets the regulation of SAE J335-SEP90 and CSA CAN3-Z62.1-M77.) www.tanaka-...

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