Poulan 1992-06 User Manual - Page 20
drum/sprocket
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E. AIR FILTER • A dirty air filter: - reduces cutting power. - increases fuel consumption. • Clean the air filter as follows: - check filter after every 10 tanks of fuel or 5 hours of operation, whichever is less. - more frequently in yew dusty conditions. 1. Clean off carburetor cover and the area around it. 2. Pull the choke to the full position to prevent dirt from entering the carburetor. 3. Remove the carburetor covet Figure 42 . 4. Carefully remove the air filter. 5. Remove the single air filter screwand separate the two halves. CAUTION; Do not use gasoline or otherflammable liquid to clean the filter to avoid creating a fire hazard. 6. Wash the filter in soap and water. 7. Brush away all dust and debris from the filter. 8. Allow the filter to dry 9. Reassemble the filter. E CLUTCH AND DRUM/SPROCKET A WARNING Do not start the engine without the ode bar, chain, and bar clamp housing completely assembled. The clutch can come off without the guide bar and chain completely assembled, and serious injury can result. The clutch shoes and drum can separate causing the clutch to violently fly apart and serious injury can result. • Take the saw to your Authorized Service Dealer for full clutch inspection and service after each 100 hours of operation. It is recommended thatyou do not trey to service the clutch or drum/sprocketyourself unlessyou are a competent small engine mechanic and have the proper clutch service tools. Proper disassembly and repair of the dutch is extremely important to the life of the engine and the safety of the operator. • Inspect the sprocket regularly for wean A worn sprocket will make the chain run erratically and will shorten the life of the bar and chain. Figure 43 . G. STORAGE When your saw is to be stored for over 30 days, always: 1. Drain fuel tank in a safe manner. See "FuelingYour Engine--Fuel Safety" 2. Start engine and allow to run at idle speed until the engine stops. NOTE: Running the engine until it stops will remove most of the fuel from the fuel system. NOTE; It is important to prevent gum deposits from formingin essential fuelsystems partssuch as the carburetor, fuel filter, fuel hose;or tank during storage. 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. - 20 - 10.Brushawayall dust and debris from the surfaces on which the filter is to be placed. 11. Reinstall the filter and carburetor covet CAUTION: To avoid damage to the engine,do not operate the unit without the air filter in place. Air Filter Single Top Screw Figure 42 • Clutch maintenance is required when: - the chain continues to turn while the engine idles after the idle speed screw has been adjusted to its capacity -- slippage occurs during a cut. - a chattering noise occurs during cutting. • Clean the clutch, drum, sprocket; and surrounding area daily during heavy use of the saw. Check to see that the clutch drum turnsfreely and smoothly. • Always have a worn sprocket replaced by your Authorized Service Dealer whenever a new chain is installed to gain the full life expectancy of the chain. Sprocket Wear Figure 43 3. Drain oil from oil tank. CAUTION: Wear protective gloves when han- dling the chain. The chain is sharp and can cut you even when it is not moving. 4. Remove dean and dry the bar and chain. 5. Store the chain in a container filled with oil to prevent rust. Applya coatingofoil to the entire surface of thebar and wrap it in heavy paper, cloth, or plastic. 7. Clean the outside surfaces of the engine. 8. Store the saw in a dry place, out of the reach of children, and away from where fuel vapors can reach open flames from hot water heaters, furnaces, etc.