8.
FUEL
[8-
1
)
FUEL
use-diesel fuel only.
The quality of fuel used
is
an important factor in
obtaining dependable performance and satisfactory
engine life. Suitable fuels must
be
clean, com-
pletely distilled, well-refined, and non-corrosive to
the fuel system parts. Be sure to use clean fuel of
a
known quality from a reputable supplier.
(1)
Fuel specifications
Use either Grade No.
1-D or Grade No. 2-D fuel,
as defined by ASTM Designation D975 for diesel
fuels. Use the chart below to determine correct
grade of fuel.
As
further insurance of satisfactory operation, use
fuel having
less
than 1.0 percent sulfur
-
prefera-
bly less than 0.5 percent.
For maximum filter life, sediment and water
should not exceed 0.10 percent.
To maintain proper fuel delivery during cold
weather operation, use Grade No. 1-D diesel fuel
with a pour point at least
5.6'C
(10°F) below
lowest ambient air temperature.
The cetane number should be 40 minimum. Ope-
ration under low ambient temperature as well as
rarefied air may require use of a fuel with a high
cetane number.
DIESEL
FUELS
Type
of
Enpine
Service
Air Temperature
Grade
No.
idling.
Heavy
load
and
high
Below
5'C
14@
F)
I
I
I
I
Note:
At
a
alritvder
above
1500
m
(5000ft.).
ure
Grade
1-0
for
all
temperaturs.
(2)
Storing fuel
Proper fuel storage is critically important. Keep all
dirt, water, and other contaminants out of fuel.
Avoid storing fuel over long periods of time.
Store fuel in a convenient place away from build-
ings.
(3)
Filling fuel
tank
Fill fuel. tank at end of each day's operation. This
prevents condensation in tank as moist air cools.
[8-2)
ENGINE
OILS
It
is important to
use
the ctjrrect type of oil con-
forming to the ambient temperature and condi-
tions under which the tractor is used.
.-
The oil must conform to one of the following
specifications:
(1
)
Single viscosity oils
API Service CD
MI
L-L-2104C
(2)
Multi-viscosity oils
API Service
CC
or CD
MIL-L-46152
Depending upon the expected ambient tempera-
ture for the fill period, use oil of viscosity as shown
in the page 55.
Ambient
temperature
!
SAElO
SAEIOW-30
WFI-~O~C~~
1
SAESW-20
1
SAESW
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