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Фрагмент инструкции
• The blade can be tested for balance by balancing it on a round shaft screwdriver or nail. Remove metal from the heavy side until it is balanced evenly. See figure 22. / Nail ° ! \ Blade FIGURE 22. • When reassembling the blade, tighten to between 550 and 650 inch pounds, or lacking torque wrench, tighten securely. FLAILS The flails, located inside the housing, may be reversed when they become dull. It is suggested that this procedure be performed by your nearest Sears Service Department. THROTTLEADJUSTMENT To adjust throttle control lever, loosen or tighten wing nut until throttle control lever moves with some resistance and still remains in desired position when engine is running. See figure 23. Throttle Control. Lever Wing Nut FIGURE 23. CARBURETORADJUSTMENT WARNING: IF ANY ADJUSTMENTS ARE _IL MADEENGINE TO THE (E.G.WHILE IS RUNNING ENGINE THE CARBURE TOR), KEEP CLEAR OF ALL MOVING PARTS. BE CAREFUL OF HEATED SUR FACES AND MUFFLER. Minor carburetor adjustment may be required to compensate for differences in fuel, temperature, altitude or load. NOTE: A DIRTY AIR CLEANER WILL CAUSE ENGINE TO RUN ROUGH. BE CERTAIN AIR CLEANER IS CLEAN AND ATTACHED TO THE CARBURETOR BEFORE ADJUSTING CARBURETOR. DO NOT MAKE UNNECESSARY ADJUSTMENTS. FACTORY SETTINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND CONDITIONS. Never attempt to change maximum engine speed. It is pre-set at the factory and should be changed only by a qualified service technician who has the necessary equipment. The carburetor may need re-adjusting if engine lacks power or does not idle properly. If adjustments are needed, proceed as follows. • Close idle mixture valve (see figure 24) clockwise ( f'_ ) finger tight only. Forcing may cause damage. Then open 1-1/2 turns counterclockwise ( ,,_ ). • Start engine and allow to warm for five minutes. • Move throttle control lever to IDLE position. • Rotate throttle counterclockwise (,,_) and hold against idle speed adjusting screw. Turn idle speed adjusting screw until engine is running at 1750 RPM. • Turn idle mixture valve clockwise (.-_) (lean mixture) until engine JUST starts to slow. Then turn it counterclockwise (,,--,) (rich mixture) until engine starts to run unevenly. Set at midpoint between rich and lean mixture. • Recheck idle RPM and readjust if necessary. • Move throttle control lever to FAST position. Engine should accelerate without hesitation or sputtering. If it does not, carburetor should be readjusted, usually to a slightly richer mixture. Throttle Speed Screw Idle Mixture Valve FIGURE 24. ENGINESPEED Your engine speed has been factory set. Do not attempt to increase engine speed or it may result in personal injury. If you believe the engine is running too fast or too slow, take your chipper-shredder to the nearest SEARS Service Center for repair and adjust ment. TIRES Recommended operating tire pressure is 24 p.s.i. (sidewall of tire may give tire manufacturer's recommended pressure). Equal tires pressure should be maintained on both rires. When installing a tire to the rim, be certain rim is clean and free of rust. Lubricate both the tire and rim generously. 15 TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE!(S) CORRECTIVE ACTION Engine fails to start • Engine shut-off _,witch OFF. Move to ON position. • Fuel shut-off val_'e closed. Open fuel shut-off valve. • Fuel tank empty, or stale fuel. Fill tank with clean, fresh fuel. • Spark plug wire disconnected. Connect wire to spark plug. • Faulty spark plu(.i. Clean, adjust gap or replace. Loss of power; • Spark plug wire loose. Connect and tighten spark plug wire. operation erratic • Unit running on (,HOKE. Move choke lever to OFF position. • Blocked fuel line or stale fuel. Clean fuel line; fill tank with clean fresh gasoline. • Water or dirt in ftlel system. Disconnect fuel line at carburetor to drain fuel tank. Refill with fresh fuel. • Carburetor out o adjustment. Adjust carburetor or contact your SEARS Service Center. • Dirty air cleaner. Service air cleaner. See Customer Responsibilities section of this manual. Engine overheats • Carburetor not a,Jjusted Contact your SEARS Service Center. properly. • Engine oil level I_)w. Fill crankcase with proper oil. Too much vibration • Loose parts or d;tmaged Stop engine immediately and disconnect impeller. spark plug wire. Tighten all bolts and nuts. Make all necessary repairs. If vibration continues, have unit serviced by a SEARS Service Center. Unit does not • Discharge chute clogged. Stop engine immediately and disconnect discharge spark plug wire. Clean flail screen and inside of blower housing. See Service/Adjustments section of this manual. • Foreign object Io:lged in impeller. Stop engine immediately and disconnect spark plug wire. Remove lodged object. Rate of discharge • Shredding blade and/or chipper Sharpen or replace shredding and chipper slows considerably or blades dull. blades. composition of discharged material changes NOTE: For repairs beyond the minor adjustm_ nts listed above, please ...