Évaluations - 3, GPA: 4
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Facilité d'utilisation
The nozzle height has to be adjusted according to the conditions. Move the height adjustment levers forward or backward to adjust the nozzle upwards or downwards. See Figure 14. NOTE: In general, raise the nozzle height to vacuum a thick layer of leaves or to operate with the blower chute and lower the nozzle height for smoother surfaces. Figure 14 CARBURETOR ADJUSTMENT WARNING: If any adjustments (e.g. carburetor) are made to the engine while the engine is running, keep clear of all moving parts. Be careful of heated surfaces and muffler. The carburetor has been pre-set at the factory and should not require adjustment. If your engine does not operate properly due to suspected carburetor problems, take your Yard Vacuum to a Sears Service Center for repair and adjustment. ENGINE SPEED The engine speed on your Yard Vacuum has been set at the factory. Do not attempt to increase the engine RPM. If you think that the engine is running too fast or too slow, take your Yard Vacuum to the nearest Sears Service Center for repair and adjustment. WARNING: Do not attempt to alter the engine speed by tampering with the engine’s governor linkage. Doing so could result in serious personal injury and damage to the engine. The engine RPM has been set at the factory. REMOVING THE FLAIL SCREEN If the discharge area becomes clogged, remove the flail screen and clean area as follows. • Stop the engine. Make certain the chipper shredder vacuum has come to a complete stop. • Disconnect and ground the spark plug wire before unclogging the discharge chute. • Remove the vacuum bag or blower chute from the unit as instructed in the OPERATION section to obtain access to flail screen. See Figure 15. Figure 15 • Remove hex screw on right side of unit that attaches to the flail screen. See Figure 16. Figure 16 • Remove hex screw and flat washer on top of rear housing near mounting bracket and the lock nut that secures flail screen. See Figure 15. • Remove and clean the screen by scraping or washing with water. Reinstall the screen. Nozzle Nozzle Height Adjustment Lever Lock Nut Flail Screen Hex Screw & Flat Washer REAR VIEW Remove Hex Screw SERVICE AND ADJUSTMENTS 15 SHARPENING OR REPLACING CHIPPER BLADE Because the engine on this unit has a tapered crankshaft, a special impeller removal tool (part number 753-0900) is required to remove the impeller assembly. For further assistance, contact your Sears Service Center. NOTE: When tipping the unit, empty the fuel tank and keep engine spark plug side up. • Disconnect and ground the spark plug wire. • Remove the front hubcaps, lock nuts, front wheels, and wave washers that attach to the pivot arm assemblies. See Figure 17. • Remove the shoulder screws and bell washers that go through the pivot arms and height bracket adjusters to the front support brace. Figure 17 • Remove the three screws on the upper housing that secure the nozzle cover and the nine screws that secure the lower housing to the upper housing. See Figure 18. Figure 18 • Remove lock nut that secures flail screen to the lower housing. The flail screen does not have to be removed. Refer to Figure 15. • Remove the hex bolt, lock washer, and flat washer that secure the impeller assembly to the crankshaft. See Figure 19. Figure 19 • Apply lubricant to the threads of impeller removal tool and then thread the tool into the crankshaft. Stop when the impeller assembly can move on the crankshaft. • Remove the impeller assembly from the crankshaft. Unthread the impeller removal tool from the impeller assembly. • Remove the chipper blade using a 3/16" allen wrench on the outside of the blade and 1/2" wrench on the underside of impeller assembly. • Replace or sharpen chipper blade. • When sharpening blade, protect hands by using gloves and follow the original angle of grind. • Reassemble by performing the previous steps in reverse order. • Tighten blade screws to 210 - 250 in-lbs. • Tighten impeller bolt to 375 - 425 in-lbs. NOTE: Make certain chipper blade is reassembled with the sharp edge facing upward. See Figure 20. Figure 20 Hubcap Lock Nut Wave Washer Shoulder Screw Bell Washer Height Adjustment Bracket Pivot Arm Assembly Nozzle Screws Lower Housing Screws Housing Screws Upper Housing Impeller Assembly Hex Bolt Lock Washer Flat Washer BOTTOM VIEW Chipper Blade Flail Blade Flail Blade Chipper Blade Impeller Assembly STORAGE STORAGE Prepare your Craftsman Yard Vacuum for storage at the end of the season or if the unit will not be used for 30 days or longer. A yearly check-up by your local Sears Service Center is a good way to ensure that the unit runs properly next season. Yard Vacuum • Clean the equipment thoroughly. • Wipe equipment with an oiled rag to prevent rust. Use a light oil or silicone to wipe. • Service the engine following instructions below. • Store unit in a clean, dry area. Do not store next to corrosive materials such as fertilizer. Engine IMPORTANT: It is important to prevent gum deposits from forming in essential fuel...