International Harvester Company CUB Operator's Manual page 74

I
'\
PREVENTIVE MAINTENANCE GUIDE
. After Every 50 Hours of Operation
Flexible rubber connection between air
cleaner and carburetor or manifold.
Pneumatic tires . .
Radiator core . . .
Lubrication points
fuspect for loose fit or leakage.
See page
25.
Check pressure.
See pages
49
and
50.
fuspect, clean if necessary.
See page
23.
See IILubrication Guide ll
•
After .Every 150 Hours of Operation
Air cleaner . .
Brake pedals.
Clutch pedal .
Lubrication points
Engine valves • . .
.'
Disassemble and Clean.
See page
25.
Check for free movement and equal pressure.
See page
50.
Check fo;;' free movement.
See page
51.
See IILubrication Guide ll
•
Check clearance.
See page
41.
After Every 250 Hours of Operation
Crankcase breather . • . . . . . . .
Engine crankcase . . . . . . . . • . .
Fuel strainer and sediment bowl.
Lubricating oil filter . . . . . . . • .
Magneto breaker points and chamber (tractors
with magneto).. . . . . . . . • . . . . . . • . . . . .
Magneto drive chamber and impulse coupling
(tractors '{lith magneto}
Spark plugs . . • . •
Lubrication points
Wheel hub bolts •.
Clean and oil.
See page
25.
Drain and change oil.
Take apart and clean.
See page
10.
Replace the filter element.
See page
57.
Check and clean.
See page
27.
Flush with kerosene.
See page
28.
Remove and clean; check gaps.
See page
26.
See IILubrication Guide ll
•
Check for tightness.
See page
43.
After Every 500 Hours of Operation
Engine valve s . . . . • . . . . • . .
Fan hub . . . . . . . . . . . . . . . .
Fuel line screen (at carburetor)
Lubrication points . • . • . . • • .
Check clearance.
See page
41.
*
Add oil to proper level.
See page
24·
Clean.
See page
11.
See IILubrication Guide
ll
•
Periodic
Cooling system . . . . • . . . . . . . . . . . . .•
Distributor cap, breaker points and chamber
Front wheels . . . . . • • . . . • . . • • . . . • . • .
Storage battery
Lubrication points
*
See your International Harvester dealer for this service.
72
Drain, flush, and refill (spring and fall).
See
pages 21 and 24.
Clean chamber and checkpoints.
Seepages
30
and
31.
Clean
a~d
repack with new grease twice a year
(spring and fall).
See page
63.
Che ck liquid level.
See pages
33
and
34.
See IILubrication Guide" •.