Assessments - 3, GPA: 4
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Facilidade de uso
• If you are unfamiliar with this engine or uncomfortable with this procedure, consult with an authorized Shindaiwa servicing dealer. 1. Remove cylinder cover, rocker arm cover, and set piston at TDC-compression. 2. Loosen adjuster locknut so that the 2.5 mm Allen socket head adjustment screw can turn freely. 3. Insert 0.10 mm (0.004 in.) feeler gauge between valve stem tip and rocker arm. 4. Turn adjustment screw (clockwise = tighter, counter-clockwise = looser) until feeler gauge is almost snug. Back off just enough to allow gauge to slip out with limited resistance. 5. While holding adjustment screw in place with Allen driver, tighten locknut with wrench. 6. Turn engine over several times, and return to TDC-compression. Recheck with proper feeler gauge to make sure clearance adjustment did not change as a result of tightening locknut. Readjust as necessary. 7. Replace rocker arm cover gasket to assure proper sealing and install cover. IMPORTANT! If new gasket is not available and/or old gasket is not damaged, old gasket may be reused. Never use cracked or damaged gaskets! Exhaust System Spark Arrester Maintenance Spark Arrester Maintenance WARNING! Never operate this blower with a damaged or missing muffler or spark arrester! Operating with missing or damaged exhaust components is a fire hazard, and can also damage your hearing! Hard starting or a gradual loss of performance can be caused by carbon deposits lodged in the spark arrester screen. For maximum performance, the spark arrester screen should be periodically cleaned as follows. See Figure 16. 1. Remove engine cover to expose muffler. Remove the spark arrester from the muffler. The screen is press-fit in place. 2. Remove screen from cover. 3. Use a plastic scraper or wire brush to remove carbon deposits from the arrester screen and wipe clean exhaust base. 4. Inspect the screen carefully, and replace any screen that has been perforated, distorted, or is otherwise unserviceable. 5. Press the spark arrester screen into the arrestor cover. If carbon accumulation in the muffler or cylinder are severe, or if you do not notice an improvement in performance after servicing, have the unit inspected by an authorized servicing Shindaiwa dealer. Carburetor Adjustment Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break- in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required. High Altitude Operation This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized Shindaiwa service dealer. MufflerArrester ScreenFigure 16 Arrester Screen Cover IMPORTANT! If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when operating the engine below 1,100 feet ASL, otherwise severe engine damage may result. NOTE: Every unit is run at the factory and the carburetor is set in compliance with emission regulations. Carburetor adjustments, other than idle speed, must be performed by an authorized Shindaiwa dealer.. Idle Adjustment Before adjustment make sure that: Idle Ajust • Air filter is clean and properly installed. ment Screw • Spark arrestor screen is free of carbon. • Blower pipes are installed. 1. Start engine, run at idle for 2-3 minutes. Figure 9 2. Check idle speed and reset if necessary. If a tachometer is available, idle speed screw should be set to the specifications found on Page 6 “Specifications” of this manual. Turn idle screw clockwise to increase idle speed; counter clockwise to decrease idle speed. Long Term Storage Whenever the unit will not be used for 30 days or longer, use the following procedures to prepare it for storage: • Clean external parts thoroughly. • Drain all the fuel from the fuel tank. IMPORTANT! Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added. CAUTION! Gasoline stored in the carburetor for extended periods can cause hard starting and could also lead to increased service and maintenance cost. • Remove the remaining fuel from the fuel lines and carburetor. 1. Prime the primer bulb until no more fuel is passing through. 2. Start and run the engine until it stops running. 3. Repeat steps 1 and 2 until the engine will no longer start. • Remove the spark plug and pour about 1/4 ounce of engine oil into the cylinder through the spark plug hole. Slowly pull the recoil starter 2 or 3 times so oil will evenly coat the interior of the engine. Reinstall the spark plug. • Before storing the unit, repair or replace any worn or damaged parts. • Remove the air cleaner element from the carburetor and clean it thoroughly with soap and ...
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