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Anleitung Bolens, modell TB144

Hersteller: Bolens
Dateigröße: 3.25 mb
Dateiname: 2e523d19-6f41-2744-f53b-45fbf9230a7d.pdf
Unterrichtssprache:enesfr
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Anleitung Zusammenfassung


Dispose of the oil according to Federal, State and local regulations. 5. Refill the crankcase with 3.04 fluid ounce (90 ml) of SAE 30 SF, SG, SH oil. NOTE: Use the bottle and spout saved from initial use to measure the correct amount of oil. Pour fresh fuel into the bottle and fill it to the top of the label. The top of the label on the bottle measures approximately 3.04 ounces (90 ml). Check the level with the dipstick. If the level is low, add a small amount of oil and recheck. Do not overfill (Fig. 18). Fill Level Fig. 18 Wear gloves to prevent injury when handling the unit. CAUTION: To prevent extensive engine wear and damage to the unit, always maintain the proper oil level in the crankcase. Never operate the unit with the oil level below the bottom of the dipstick. CAUTION: Oil Fill Plug/Dipstick Oil Fill Hole O-Ring MAINTENANCE AND REPAIR INSTRUCTIONS AIR FILTER MAINTENANCE 4. Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 21). 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. To avoid serious WARNING: personal injury, always turn the unit off and allow it to cool before you clean or service it. 1. Open the air filter cover. Push the tab on the left side of the cover in, swing the air filter cover out and off the air filter housing (Fig. 19). 2. Remove the air filter and the screen that sits behind it (Fig. 19). Screen Air Filter Air Filter Hooks Slot Choke Lever Air Filter Cover Air Filter Housing Tab Tab Fig. 19 3. Wash the filter in detergent and water (Fig. 20). Rinse the filter thoroughly and allow it to dry. Fig. 21 5. Squeeze the filter to spread and remove excess oil (Fig. 21). 6. Replace the filter (Fig. 19). NOTE: If the unit is operated without the air filter, you will VOID the warranty. 7. Reinstall the air filter cover. Position the hooks on the right side of the air filter cover into the slots at the right side of the air filter housing. 8. Swing the cover to the left until the tab on the air filter cover snaps into place in the slot on the left side of the air filter housing (Fig. 18). CARBURETOR ADJUSTMENT The idle speed of the engine is adjustable. An idle adjustment screw is reached though a hole in the top of the engine cover (Fig. 22). NOTE: Careless adjustments can seriously damage your unit. For carburetor adjustments, take your unit to a Sears or other qualified service dealer. Check Fuel Old fuel is usually the reason for improper unit performance. Drain and refill the tank with fresh fuel prior to making any adjustments. Refer to Oil and Fuel Information. 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 carburetor. Check the condition of the air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance. Adjust Idle Speed Screw This unit needs to run during idle speed adjustment. Wear protective clothing and observe all safety instructions to prevent serious personal injury. WARNING: 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 Fig. 20 to warm up. Refer to Starting/Stopping Instructions. MAINTENANCE AND REPAIR INSTRUCTIONS NOTE: Ensure the tines are not in contact with the ground when adjusting the idle. 2. Release the throttle trigger and let the engine idle. If the engine stops, insert a small phillips or flat blade screwdriver into the hole in the air filter/muffler cover (Fig. 22). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly. NOTE: The tines should not rotate when the engine idles. 3. If the tines rotate when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed. 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 Troy-Bilt or other qualified service dealer. Idle Adjustment Screw 1 2 3 Fig. 22 ROCKER ARM CLEARANCE The rocker arm clearance may need adjustment if your unit suffers a loss of performance power or has trouble starting. Adjusting the rocker arm clearance requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to a Sears or other qualified service dealer. NOTE: Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and then every 25 hours of operation thereafter. • The engine must be cold when checking ...


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