SDEC D Series - Other Technical Requirements

Operation and Maintenance Manual SC9DF Electronically Controlled Diesel Engine for Agricultural Equipment
16
2.5 Other technical requirements
2.5.1 Diesel fuel
Warning: Gasoline or alcohol is not allowed to be used with diesel fuel, as their mixture may cause
detonation.
The quality of diesel fuel used for this engine should be not less than the requirement of national standard GB 19147.
Main fuel specifications specified in the standard are as follows.
Main Specifications of Diesel Fuel (GB 19147)
.
Item
Desig-
nation
Cetane
number
Distillation
Temperature
℃
kinemati
c
viscosity
(20℃)
mm
2
/s
Steel
Corro-
sion
（50
℃，
3h）级
≤
Mois-
ture
％
(v/ v)
Sulfur
content
%
(m/m)
≤
Density
(50 )℃
kg/m
3
Ash
％
(m/m)
≤
Mecha
nical
impur
ity
％
Soli
d
℃
≤
Cold
Filter
Point
℃
≤
Flash
Point
(closed
)
≥
≥
50％
≤
90％
≤
95％
≤
5
49
300 355 365
3.08.0
1 Trace 0.035
810
850
0.01 None
5 8
55
0 0 4
-10
2.58.0
-10 -5
-20 46 790
840
-20 -14 50
-35
45
1.87.0
-35 -29
45
-50 -50 -44
Choose diesel fuel according to engine operation environment. Use fuel with high solid point for warm area, and with
low solid point for cold area. For example, fuel of designation -35 should be used for ambient temperature of -27℃.
Relationship between diesel fuel designation and applicable minimum temperatures
Fuel designation 5#
0# -10# -20# -35# -50#
Cetane number ≥49 ≥49 ≥49 ≥46 ≥45 ≥45
Solid point/℃ ≤5 ≤0 ≤-10 -20 -35 -50
Minimum applicable temperature
(engine working temperature)/℃
Above
8℃
Above
4℃
Above
-5℃
Above
-14℃
Above
-29℃
Above
-44℃
△Caution: Fuel must be kept at the highest level of cleanness and not be polluted by dust, impurities or
water. It is important to keep fuel clean and free from impurities, for moisture and foreigners in the fuel
system will cause serious damage to the fuel injection pump and injectors. Diesel fuel should have sufficient