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Manafacture: Craftsman
File size: 12.25 mb
File name: b479c6cb-fea7-6f54-89cf-c8a08f0e5951.pdf
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manual abstract
See Figure 24. Figure 24 • The nuts on the flat head cap screws can be reached from underneath using a 1/2-inch socket, universal, and extension. See Figure 25. Figure 25 • Replace or sharpen chipper blade. The blade can be sharpened with a file or on a grinding wheel. • When sharpening blade, protect hands by using gloves and follow the original angle of grind. • Reassemble by performing the previous steps in the opposite order and manner of removal. • Tighten blade screws to 210 - 250 in-lbs. NOTE: Make certain chipper blade is reassembled with the sharp edge facing upward. See Figure 26. Figure 26 Nozzle Screws Lower Housing Screws Housing Screws Shoulder Bolts Black Plastic Nozzle Flat Head Chipper Blade Cap Screw Nuts Impeller 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 Parts & Repair 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 system parts such as the carburetor, fuel filter, fuel hose, or tank during storage. Also, alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. NOTE: Fuel stabilizer is an acceptable alternative to emptying the tank of fuel in minimizing the formation of fuel gum deposits during storage. • Add stabilizer to gasoline in fuel tank (if FreshStart™ fuel preserver cartridge is empty) or storage container. • Do not drain the gas tank and carburetor if using fuel stabilizer. In all cases, drain all the oil from the crankcase (this should be done after the engine has been operated and is still warm) and refill the crankcase with fresh oil. When you visually see that the fuel preserver cartridge is empty, replacement cartridges are available through your local Sears Parts & Repair Center and most Sears stores. If you do not use FreshStart™/ Stabilizer, follow these instructions: • Drain the fuel from the tank by running the engine until the fuel tank is empty. • Remove spark plug, pour approximately 1/2 ounce (approximately one tablespoon) of engine oil into cylinder and crank slowly to distribute oil. • Replace spark plug. Other • Do not store gasoline from one season to another. • Replace the gasoline can if it starts to rust. Rust and/or dirt in the gasoline will cause problems. • Store unit in a clean, dry area. Do not store next to corrosive materials, such as fertilizer. NOTE: If storing in an unventilated or metal storage shed, be certain to rustproof the equipment by coating with a light oil or silicone. 18 TROUBLESHOOTING TROUBLESHOOTING Problem Possible Cause(s) Corrective Action Engine fails to start 1. Fuel tank empty or stale fuel. 2. Spark plug wire disconnected. 3. Cannot pull recoil cord. 4. Choke not in ON position. 5. Faulty spark plug. 6. Safety switch not depressed. 7. Safety switch wire is not connected to engine or not properly grounded. 1. Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is added. 2. Connect wire to spark plug. 3. Obstruction lodged in impeller. Disconnect spark plug wire and remove lodged object. 4. Move CHOKE to ON position. 5. Clean, adjust gap or replace. 6. Safety switch must be depressed by the front tab on the bag handle when securing the bag. 7. Connect safety switch wire to engine connector and ground to mounting bracket. Loss of power; operation erratic 1. Spark plug wire loose. 2. Unit running on CHOKE. 3. Blocked fuel line or stale fuel. 4. Water or dirt in fuel system. 5. Carburetor out of adjustment. 6. Low engine RPM. 1. Connect and tighten spark plug wire. 2. Move choke lever to OFF position. 3. Disconnect fuel line at carburetor to drain fuel tank; fill tank with clean fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. 4. Disconnect fuel line at carburetor to drain fuel tank. Refill with fresh fuel. 5. Contact your Sears Parts & Repair Center. 6. Always run engine at full throttle. Too much vibration 1. Loose parts or damaged impeller. 1. Stop engine immediately and disconnect spark plug wire. Have unit serviced by a Sears Parts & Repair Center. Engine overheats 1. Carburetor not adjusted 2. Engine oil level low 1. Contact your Sears Parts & Repair Center. 2. Fill crankcase with proper selection of oil. Unit does not discharge 1. Discharge area clogged. 2. Foreign object lodged in impeller. 3. Low engine RPM. 4. ...