The following diagnostics were taken directly from the Cub owners manual.The complete owners manual can be found in the community forums under the link for PDF Manuals. NOTE: Manual downloads are available for community members only; don't worry, everyone is welcome to join our community.
After Every 10 Hours of Operation | |
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Air cleaner cap | Remove any dirt or chaff. |
Air cleaner oil | Remove, clean and fill. |
Lubrication points | Use "Lubrication Guide." Join our Community Forum and download PDF manuals for FREE. |
Cooling system | Check the level of the coolant in the radiator. |
Fuel tank | Fill with a good grade of clean gasoline. |
After Every 60 Hours of Operation | |
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Air cleaner, complete | Remove and clean. |
Flexible rubber connection between air cleaner and carburetor | Inspect for loose fit or damage. |
Fan belt | Check tension; replace when necessary. |
Radiator fins | Clean spaces. |
Lubrication points | See "Lubrication Guide." |
After Every 120 Hours of Operation | |
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Lubricating oil filter | Take apart and clean. |
Engine crankcase | Drain and change the oil. |
Lubrication points | See "Lubrication Guide." |
Crankcase breather cap | Clean in kerosene. |
Storage battery | Check the liquid level and specific gravity. |
After Every 250 Hours of Operation | |
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Fuel Strainer and sediment bowl | Take apart and clean. |
Spark plugs | Remove and clean; check gap. |
Magneto breaker points and chamber | Clean chamber and check gap. |
Magneto drive chamber and impulse coupling | Check and clean if necessary. |
After Every 400 Hours of Operation | |
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Cooling system | Clean. |
Engine valves | Check for clearance. |
Clutch pedal | Check for free movement. |
Brakes | Check for free movement and equalization. |
Lubrication points (500 hours) | See "Lubrication Guide." |
Every 6 Months or After Every 500 Hours of Operation | |
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Front wheels | Clean and repack with new grease. |
Lubrication points (1,000 hours) | See "Lubrication Guide." |
Distributor breaker points and chamber | Clean chamber and check points and opening. |