Preventive Maintenance - International Harvester Company CUB Operator's Manual

PREVENTIVE MAINTENANCE GUIDE
After Every 50 Hours of Operation
Flexible rubber connection between air
cleaner and carburetor or manifold. fuspect for loose fit or leakage. See page 25.
Pneumatic tires. Check pressure. See pages 50 and 51.
Radiator core. fuspect. cl~an if necessary. See page 23.
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After Every 100 Hours of Operation
Drain and change oil.
Engine
crankcase
After Eve ry 150 Hours of Operation
Air
cleaner. Brakepedals
Clutch pedal. , Lubrication points Engine valves
Disassemble and Clean. See page 25.
Check for free movement and equal pressure.
See pages 51 and 52.
Check for free movement. See page 52.
See "Lubrication Guide".
Check clearance. See pages 42* and 43*.
After Every 200 Hours of Operation
Replace the filter element. See pages 61 to 63.
Lubricating oil filter.
After Every 250 Hours of Operotion
Clean and oil. See page 25.
Take apart and clean. See page 10.
Check and clean. See page 27.
Flush with kerosene. See page 28.
Remove and clean; check gaps.See pages 26 and 27.
Check for tightness. See page 44.
Crankcase breather. ~ ..
Fuel strainer and sediment bowl. Magneto breaker points and chamber (trac-
tors with magneto} Magneto drive chamber and impulse coupling
(tractors with magneto) Sparkplugs Wheel hub bolts
After Every 500 Hours of Operotion
Check clearance. See pages 42* and 43*,
Add oil to proper level. See page 24.
Clean. See page 11.
See "Lubrication Guide".
Engine valves Fan hub Fuel line screen (at carburetor) Lubrication points
Periodic
Cooling system
Distributor cap, breaker points and chamber
Frontwheels
Drain, flush, and refill (spring and fall). See
pages 21 to 24.
Clean chamber andcheckpoints. See pages 30 and 31.
Clean and repack with new grease twice a year
(spring and fall). See page 64.
Check liquid level. See pages 33 and 34.
See IILubrication Guide".
Storage
battery. Lubrication points
,. See your International Harvester dealer for this service.
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