Maintenance and Adjustment
410/420/430 - 001 8903 U1
UZEL
99
Min Max Max Max Max Min Max Min Max Max Max Min
Grades of
diesel fuel
oil
Flash
point
( ºF)
ºC
Pour
point
( ºF)
ºC
Water
and
sediment
volume
%
Carbon
residue
on 10%
residu
um%
Ash
weight
%
Distillation
temperatures
ºF (ºC)
Viscosity at
100ºF
(37.8ºC)
Sulfur
weight
%
Copper
strip
corrosion
Cetane
numbers
90%
Kinematic, cSt
(or SUS)
No 1 - D A volatile
distillate fuel oil
for engines in
service requiring
frequent speed
and load
changes.
No 2 - D A
distillate fuel oil of
lower volatility for
engines in
industrial and
heavy mobile
service.
37.8
(100) or
legal
b 0.05 0.15 0.01 -- 287.8
(550)
1.4
(550)
2.5
(34.4)
0.5 or
legal
No 3 40f
51.7
(125) or
legal
b 0.05 0.35 0.01 282.2
(540c)
338
(640)
2.0
(32.6)
4.3
40.1)
0.50d or
legal
No 3 40f
Table 13
a. To meet special operating conditions, modifications
of individual limiting requirements may be agreed
upon between purchaser, seller and manufacturer.
b. For cold weather operation, the pour point should
be specified 10ºF (5.6ºC) below the ambient
temperature at which the engine is to be operated
except where diesel fuel oil heating facilities are
provided.
c. When pour point less than 0ºF (-17.8ºC) is specified,
the minimum viscosity shall be 1.8 cSt (32.0 SUS)
and the minimum 90 percent shall be waived.
d. In Countries outside the USA., other sulphur limits
may apply.
e. Where Cetane number by Method D 613 is not
available, ASTM Method D 976 Calculated Cetane
Index of
Distillate Fuels 2 may be used as an approximation.
Where there is disagreement, Method D 613 shall
be the preferred method.
f. Low atmospheric temperatures as well as engine
operation at high altitudes may require use of fuels
with higher cetane ratings.
g. Low sulfur fuels may require an additional lubricity
agent for fuel injection pump protection. Enquiries
should be directed to your fuel supply source for
assurance that adequate lubricity amounts are
contained in the fuel purchased.
NOTE: Diesel fuels are classified as either No 1 (No
1-D) or No 2 (No 2-D) fuel. The grade No 1 fuel is
recommended for service when the air temperature
is below 32ºF. The grade No 2 fuel, which will produce
more work per gallon, is recommended for service
when the air temperature is 32ºF, or above.
Fuel specifications
Limiting requirements for diesel fuel oils
See chart for fuel requirements:
Fuel Cooling - ( MF 420/430 only)
To cool the injected fuel after injectors on return line,
420/430 model tractors are equipped with a fuel
cooler (Fig. 149). By this cooler fuel temperature
drops by 4 or 5ºC. Afterwards, the cooled fuel
returns the fuel tank.
Fuel cooler
Fig.149
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