Operation Manual

12 PERIODIC SERVICE
ENGLISH
PERIODIC SERVICE
FUEL
Fuel is flammable and can be dangerous. You should
handle fuel with care.
CAUTION
To avoid personal injury:
A Do not mix gasoline or alcohol with
diesel fuel. This mixture can cause
an explosion.
A Be careful not to spill fuel during
refueling. If fuel should spill, wipe it
off at once, or it may cause a fire.
A Do not fail to stop the engine before
refueling. Keep the engine away
from the fire.
A Be sure to stop the engine while
refueling or bleeding and when
cleaning or changing fuel filter or
fuel pipes. Do not smoke when
working around the battery or when
refueling.
A Check the above fuel systems at a
well ventilated and wide place.
A When fuel and lubricant are spilled,
refuel after letting the engine cool
off.
A Always keep spilled fuel and
lubricant away from engine.
BFuel level check and refueling
1. Check to see that the fuel level is above the lower
limit of the fuel level gauge.
2. If the fuel is too low, add fuel to the upper limit. Do
not overfill.
A Cetane Rating : The minimum recommended Fuel
Cetane Rating is 45. A cetane rating greater than 50
is preferred, especially for ambient temperatures
below -20 °C (-4 °F) or elevations above 1500 m
(5000 ft).
A Diesel Fuel Specification Type and Sulfur Content %
(ppm) used, must be compliant with all applicable
emission regulations for the area in which the engine
is operated.
A Use of diesel fuel with sulfur content less than 0.10
% (1000 ppm) is strongly recommended.
A If high-sulfur fuel (sulfur content 0.50 % (5000 ppm)
to 1.0 % (10000 ppm)) is used as a diesel fuel,
change the engine oil and oil filter at shorter
intervals. (approximately half).
A DO NOT USE Fuels that have sulfur content greater
than 1.0 % (10000 ppm).
A Diesel fuels specified to EN 590 or ASTM D975 are
recommended.
A No.2-D is a distillate fuel of lower volatility for
engines in industrial and heavy mobile service. (SAE
J313 JUN87)
A Since KUBOTA diesel engines of less than 56 kW
(75 hp) utilize EPA Tier 4 and Interim Tier 4
standards, the use of low sulfur fuel or ultra low
sulfur fuel is mandatory for these engines, when
operated in US EPA regulated areas. Therefore,
please use No.2-D S500 or S15 diesel fuel as an
alternative to No.2-D, and use No.1-D S500 or S15
diesel fuel as an alternative to No.1-D for ambient
temperatures below -10 °C (14 °F).
1) SAE : Society of Automotive Engineers
2) EN : European Norm
3)
ASTM : American Society of Testing and Materials
4) US EPA : United States Environmental Protection
Agency
5) No.1-D or No.2-D, S500 : Low Sulfur Diesel (LSD)
less than 500 ppm or 0.05 wt.%
No.1-D or No.2-D, S15 : Ultra Low Sulfur Diesel
(ULSD) 15 ppm or 0.0015 wt.%
Flash Point,
°C
(°F)
Water and
Sediment,
volume
%
Carbon
Residue on,
10 percent
Residuum,
%
Ash,
weight
%
Min Max Max Max
52
(125)
0.05 0.35 0.01
Distillation
Temperatures,
°C(°F)
90%
Point
Viscosity
Kinematic
cSt or
mm /s at
40°C
Viscosity
Saybolt,
SUS at
37.8°C(100°F)
Min Max Min Max Min Max
282
(540)
338
(640)
1.9 4.1 32.6 40.1
Sulfur,
weight
%
Copper
Strip
Corrosion
Cetane
Number
Max Max Min
0.50 No. 3 40