Craftsman 79194 Operation Manual - Page 11

AIR FILTER MAINTENANCE Air Filter Cover _b tsuerrAnvRicthNeeINituG. n:it oTffoaanvdoiadlloswerioitutso pcoeorsl obneaflorienjuyroyu, acllweaanysor Cleaning the Air Filter Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain your air filter properly can result in poor performance or can cause permanent damage to your engine. 1. Open the air filter cover. Push the tab on the under side of the cover inward. Then pull the air filter cover out and up. (Fig. 23). Air Filter Cover Fig. 28 Tab IDLE SPEED ADJUSTMENT Tab Fig. 23 2. Remove the air filter (Fig. 23). 3. Wash the filter in detergent and water (Fig. 24). Rinse the filter thoroughly and allow it to dry. 4. Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 25). 5. Squeeze the filter to spread and remove excess oil (Fig. 26). 6. Replace the filter (Fig. 23). NOTE: If the unit is operated without the air filter, you will VOID the warranty. f Fig. 24 Fig. 25 7. Reinstall the air filter cover. Position the Back Plate slots on the top of the air filter cover onto the tabs at the top of the back plate (Fig. 27). 8. Swing the cover down until the tab on the air filter backplate snaps into place in the slot on the air filter cover (Fig. 28). Air _ Fig. 26 Tabs Fig. 27 Locking Tab sure the cutting attachment has stopped rotating before _lb I WyoAuRtNurInNGit: off Taondprseevtenitt dsoewrnio.us personal injury, make The idle speed of the engine is adjustable. An idle adjustment screw is between the air filter cover and the engine starter housing (Fig. 29). Idle Adjustment Screw NOTE: Careless adjustments _ "_ can seriously damage your unit. Aside from the idle speed, only a _ Sears or other qualified service dealer should r- make carburetor 1. Check adFjuusetlments. / Old fuel is usually the reason for { improper unit performance. Fig. 29 Drain and refill the tank with fresh fuel prior to making any adjustments. Refer to Oil and Fuel Information. 2. Clean Air Filter The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow. This is often mistaken for an out of adjustment idle. Check the condition of the air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance. 3. Adjust Idle Speed Screw speed adjustments. Wear protective clothing and observe ,_ WallAsRaNfeItNyGin: struTcthioencsutttiongpraetvteancht mseerniot usmapyersspoinnalduinrijnugry.idle If, after checking the fuel and cleaning the air filter, the engine still will not idle, adjust the idle speed screw as follows: 1. Start the engine and let it run at a high idle for a minute to warm up. Refer to Starting/Stopping Instructions. 2. Release the throttle trigger and let the engine idle. If the engine stops, insert a small phillips screwdriver in between the Air Filter Cover and the Engine Cover (Fig. 29). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly. NOTE: The cutting attachment should not rotate when the engine idles. 3. If the cutting attachment rotates when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), until the attachment stops turning. Checking the fuel, cleaning the air filter, and adjusting the idle speed should solve most engine problems. If not and all of the following are true: • the engine will not idle • the engine hesitates or stalls on acceleration • there is a loss of engine power Have the carburetor adjusted by a Sears or other qualified service dealer. 11