BEFORE YOU OPERATE
38
Approved fuel
In case of using biodiesel (only concentrations up to
B20) such fuel should comply with the below
recommended standards. However, raw pressed
vegetable oils are not considered to be biodiesel
and are not acceptable for use as fuel in any
concentration in Isuzu engines.
1. EN14214 (European standard) and/or ASTM
D-6751 (American standard).
In North America, biodiesel and biodiesel
blends must be purchased from the BQ-9000
accredited producers and BQ-9000 certified
distributors.
2. All applicable engines can be operated with
biodiesel fuel up to B20 (20 % bio-fuel blend)
as a maximum concentration.
(For your information: In Japan, the legally
allowed maximum concentration for on-road
applications is B5.)
Conditions for the operation with biodiesel
(from B8 to B20)
When operating your applicable Isuzu C series
engine with biodiesel blends concentrated above
B8, we seriously recommend observing the
following operation, service and maintenance
conditions:
1. The original service interval of the below stated
services as indicated in the respective Isuzu
engine standard operation manual, the
application manual and the service manual
should be halved (please refer to your own
manuals for the each service interval):
• Replacement interval of engine oil filter, engine
oil and the fuel filter.
• Cleaning interval of the water separator
• Drain interval of the fuel tank.
2. It is required to inspect, clean and adjust the
fuel injector every 1000 operating hours.
3. Before using the bio-diesel fuel of B10 or higher,
replace the following parts.
• Fuel hose (The hose must be replaced every 2
years or 2000 hours regardless of the bio fuel
type.)
• O-ring of fuel filter
• O-ring of water separator
• When replacing a diaphragm type fuel feed
pump to an electronic type, replace to the feed
pump and the pump cover instructed to the
attached list.
• If the water separator is not attached, it needs
to be attached.
Please refer to the attached list of exchange
parts for details.
4. Please use only biodiesel fuel that is
appropriate to the intended operation
environment of the engines. This especially
applies if the operating ambient temperature
falls below 0 degree centigrade.
5. In particular, operation with biodiesel requires
daily maintenance as follows:
• Please daily check the engine oil level. If the oil
level rises above the oil level of the previous
day, the engine oil needs to be immediately
replaced.
• Please daily check the water level of the water
separator. If the water level rises above the
“max” indicator, an immediate drain of the
water separator is required.
6. Biodiesel blends up to B20 can only be used for
a limited time of up to 3 months of the date of
biodiesel manufacture. Therefore biodiesel
needs to be used at latest within 2 months from
the time of filling the tank or within 3 months
from the time of production by the fuel supplier,
whichever comes first.
7. Before a long-term storage without operating
the engine, the biodiesel needs to be drained
out completely and the engine has to be run for
30 minutes with conventional diesel fuel as
indicated in your operation manual.
TNV_OperationManual_T4(under 19kW).book Page 38 Wednesday, June 17, 2015 11:23 AM
