Fuel And Lubrication - Yanmar YM276 Service Manual

FUEL AND LUBRICATION
10-15-1
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, completely distilled, wellrefined, and non-corrosive
to the fuel system parts. Be sure t o use fuel of a known quality
from a reputable supplier.
Fuel Specifications
Use either Grade No. l - D or Grade No. 2-D fuel, as defined by
ASTM Designation D975 for diesel fuels. Use the chart below t o
determine correct grade of fuel.
As further insurance of satisfactory operation, use fuel having less
than 1.0 percent sulfur
-
preferably 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. l - D diesel fuel with a pour point at least 5 . ~ 3 ~ ~
( 1 0 " ~ ) below lowest ambient air temperature.
The cetane number should be 40 minumum. Operation under low
ambient temperature as well as rarefied air, may required use of a
fuel with a higher cetane number.
DIESEL FUELS
CHECKING FUEL LEVEL
Tvw of Engine Service
Wide variation in load
and conrider.
able idling.
Heaw
loadand high
speed. minimum idling.
Check fuel gauge to make sure tractor has enough fuel for driving
around the lot. I f not, add some. Try to never run a diesel engine
out of fuel.
FILLING FUEL TANK
Fill fuel tank at end of each day's operation. This prevents con-
densation in tank from moist air cooling.
Air
Temperature
Below 25-C
18O0FI
Above
25' C
180'~)
Below 5-C (40-F)
Above
5-C (40'Fl
Proper fuel storage is critically important Keep all dirt, water,
and other contaminants out of fuel. Avoid storing fuel over long
periods of time.
Diesel
Fuel
Grade
No.
1-D
2-D
1.D
2-D
STORING FUEL
Store fuel in a convenient place away from buildings.
a