Kubota L4701, Operator'S Manual

Page: 100 / 142

1. Biodiesel fuel (BDF)
B0-B20 Biodiesel fuels (BDF): mixed diesel fuels
containing 20% or less biodiesel can be utilized under
the following conditions.
IMPORTANT :
• Refueling and handling fuel should be done
with caution in order to avoid contact with the
fuel and spillage that could create a potential
environmental or fire hazard. Wear appropriate
protective equipment when refueling.
Applicable BDF:
1. Blended diesel fuels containing 6% thru 20% BDF
(B6 - B20) which comply with American Society for
Testing and Materials (ASTM) D7467 Standard, as
revised, can be used without adversely affecting the
performance and durability of the engine and fuel
system components.
2. Any mineral oil diesel fuel, if used, must conform to
ASTM D975 (or the European EN590) Standard, as
revised. B100 fuel used to make Biodiesel blended
fuels must meet ASTM D6751 (or EN14214)
Standard, as revised. The final blended fuel B20
must conform to ASTM D7467 Standard, as
revised. Straight vegetable oil is NOT allowed in
any blended fuel.
3. Allowable blended fuel is mineral oil diesel fuel
blended with B100 (i.e. 100% BDF). The blended
fuel ratio shall be less than 20% B100 and 80% or
more diesel fuel. The B100 source used for
Biodiesel blends must be purchased from an
accredited BQ-9000 marketer or producer. More
information about qualified marketer(s) and
producer(s)
can be found at http://
www.bq-9000.org .
Preparation:
1. Before using BDF concentrations greater than B5,
you are advised to replace the engine oil, engine oil
filter and fuel filter with new oil and filters. For
replacement procedures, refer to the "PERIODIC
SERVICE" section.
Product Warranty, Emission and Other Precautions:
1. The engine emission control system was certified
according to current regulations based on the use
of non-BDF. When using BDF, the owner is advised
to check applicable local and federal emission
regulations and comply with all of them.
2. BDF may cause restricted or clogged fuel filters
during cold weather conditions, resulting in the
engine not operating properly.
3. BDF encourages the growth of microorganisms
which may cause degradation of the fuel. This in
turn may cause fuel line corrosion or reduce fuel
filter flow earlier than expected.
4. BDF inherently absorbs moisture which may cause
degradation of the fuel earlier than expected. To
avoid this, drain the water separator and fuel filter
port often.
5. Do not use Biodiesel concentrations higher than
20% (i.e. greater than B20). Engine performance
and fuel consumption will be affected, and
degradation of the fuel system components may
occur.
6. Do not readjust the engine fuel control system as
this will violate emission control levels for which the
equipment was approved.
7. Compared with soybean-based and rapeseed-
based feedstock, palm oil-based feedstock has a
thicker consistency (i.e. higher viscosity) at lower
temperatures. Consequently, fuel filter performance
may be reduced, particularly during cold weather
conditions.
8. The Kubota Warranty, as specified in the Owner's
Warranty Information Guide, only covers defects in
product materials and workmanship. Accordingly,
any problems that may arise due to the use of poor
quality fuels that fail to meet the above
requirements, whether biodiesel or mineral oil
based, are not covered by the Kubota Warranty.
Routine handling:
1. Avoid spilling BDF onto painted surfaces as this
may damage the finish. If fuel is spilled immediately
wipe clean and flush with soapy water to avoid
permanent damage.
2. When using BDF, you are advised to maintain a full
tank of fuel, especially overnight and during short
term storage, to reduce condensation within the
tank. Be sure to tighten the fuel cap after refueling
to prevent moisture build up within the tank. Water
in the Biodiesel mixture will damage fuel filters and
may damage engine components.
Maintenance Requirements when using BDF B0
thru B5:
Follow the oil change intervals recommended by
referring to the "MAINTENANCE" section. Extended oil
change intervals may result in premature wear or
engine damage.
Maintenance Requirements when using BDF B6
thru B20:
The maintenance interval for fuel related parts
changes.
See the table below for the new maintenance interval.
MAINTENANCE LUBRICANTS, FUEL, AND COOLANT
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L4701