
taminate the fuel,
dog
the fllters
and
eventually
damage
the fuel pump
and
iniectors.
A portable storage tank provides the best method
for storing fuel on the job.
In
a tank, the sediment
and
water can easily be drained
and
the fuel
can
be pumped into the tractor fuel tank with a mini·
mum
of handling. Consult your local Allis·
Chalmers
dealer
for details
about
this type of
storage
tank. Since condensation
will
occur
in
the
tank,
it
is
very important
that
a sediment sump be
provided
in
the bottom of the storage tank where
the
water
and
settlings
can
be
drained daily.
Fuel
should be allowed to settle
at
least
4B
hours
in
the
storage
container before
it
is
put
in
the fuel
tank of the tractor.
It
is
advisable to use a pump
and
draw
the fuel from the tank or barrel rather
than from the bottom of the container by means
of a faucet
or
through the bung hole.
Where conditions
are
such
that
drums must be
used to supply fuel,
it
is
advisable to have enough
drums to allow sufficient time for the fuel to settle.
The fuel should
be
used only to within
about
three
inches from the bottom.
The
fuel thus left
in
a
number of drums can be collected into one drum
and
used after the usual time allowed for settling.
In
this manner, the sediment
and
foreign matter
will
be disposed of
and
no
fuel
will
be wasted.
Whenever drums
are
used for storage, they should
be
covered or placed under shelter to avoid the
fuel becoming contaminated by water which
will
enter through the flller plugs when
it
rains, even
though the plugs
are
tight.
The fuel tank of the tractor should be fllled
at
the
end of the day's run rather than
in
the morning.
This
will
reduce the water content, as a
full
tank
is
less
subject to condensation. The fuel tank
is
provided with a drain elbow
and
drain cock.
Sediment
will
settle into this elbow
and
can be
drained.
6.
TRACTOR
AND
ENGINE
SERIAL
NUMBERS
9
On all parts orders
and
in
all correspondence
relative to the tractor,
it
is
necessary that both
tractor
and
engine serial numbers be given.
This
will
properly identify the particular tractor
and
will
insure obtaining the correct replacement parts
for it.
Prior to engine Serial Number 2·71·111
BO,
the
engine serial number
is
stamped on a plate
at-
tached to the left side of the cylinder block below
the governor control housing. On engines Serial
Number 2·71·11180 to 2·71-15635 the number
is
stamped directly
in
the cylinder block
in
the same
relative location. Effective on engines after
2-71-15635 the engine serial numbering system
was changed.
In
the new system of numbering,
the preflx numbers
2-71
were changed to
read
2A-l, 2A-2, etc.,
and
are
stamped
in
the cylinder
block.