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Ferguson Tractor TO-20 Operation and Maintenance Manual

Air cleoner, oir intake and carburetor
Your tractor fuel system includes a fuel tank
under tractor hood (capacity: 10 U.S. or 8.3 Im-
perial gallons), fuel sediment bowl-and-filter, air
cleaner, carburetor and governor.
When filling gas tank, turn off engine,
use good
clean gasoline, straining through screened funnel
or through chamois.
AIR CLEANER
The air cleaner (right'
side of tractor, adja-
cent to battery)
re-
moves dust and dirt
particles from all the
air that passes into the
carburetor.
This
ex-
cludes abrasives which
would normally cause
excessive wear on cyl-
inders, pistons, rings
and valves.
Diagram shows how air
loses larger dirt particles
in top screen, deposits more in bottom oil both, and drops
remaining particles in the filtering elements in the body of
the air cleaner which, due to the woshing action, causes
foreign matter to settle in the bowl at the bottom of the
filter.
CARE OF fHE AIR CLEANER
The air-cleaner bowl should be cleaned and re-
filled daily with clean oil of the same viscosity
as that used in the engine.
Under very dusty and dirty conditions, how�
ever, it may be advisable to clean
,ice each day.
Remove top inlet screen daily and wash in gas-
oline. Never oil this screen. If main filtering ele-
Clean air-cleaner
screen
doily for best engine
operation.
Air-cleaner bowl should be
removed and cleaned
daily.
ment is plugged with lint or other foreign matter
which cannot be washed out, install a new air
cleaner, as any restriction of air flow will cause
a choking action, resulting in excessive fuel con-
sumption and loss of engine power.
Inspect cleaner periodically for breaks in cen-
ter tube and outside case to insure good cleaning
action. The tube and hose between air cleaner
and carburetor should be regularly checked for
air leakage. Any leakage or by-passing of air
cleaner may result in serious damage to the
engine.
FUEL FILTER AND SEDIMENT BOWL
The fuel filter and sedi-
ment
bowl
assembly,
which traps sediment and
foreign matter in the gas-
oline, is screwed into the
bottom of the left side of
the fuel tank. It serves as
a shut-off valve, stopping
the gasoline flow to the car-
buretor, and controls both
main and reserve fuel sup-
plies. (Note: Valve has a
leftband thread.) Turn f ul-
ly to right (clockwise) to
•-
Sediment bowl with re-
serve fuel control. Re-
move
bowl
and filter
and clean every week.
shut off fuel supply. Turn fully to the left ( coun-
terclockwise)
to
operate
main
fuel
supply
through the standpipe which extends approxi-
mately one inch above tank bottom. The reserve
supply contains approximately one gallon which
is released by turning shut-off valve two complete
turns to right from full open position, thus open-
ing the reserve fuel line which is flush with the
bottom of the tank.