Case CX490D Operator's Manual page 199

Crawler excavator
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NOTICE: Any problem in the engine fuel injection equip-
ment associated with non-compliance to the following
conditions for biodiesel fuel handling and maintenance
will not be covered for Warranty by CASE CONSTRUC-
TION.
Purchase biodiesel fuel from a trusted supplier who
understands the product and maintains acceptable
fuel quality.
It is highly recommended that you use
biodiesel from BQ 9000 accredited suppliers to maintain
the quality and consistency of the fuel. The BQ 9000
Quality Management Program is accredited by the Na-
tional Biodiesel Board for producers and marketers of
biodiesel fuel. See the National Biodiesel Board website
at www.biodiesel.org for more information.
6 - MAINTENANCE
Storage
The machine should not be stored for long periods without
changing the diesel fuel in the fuel system.
NOTICE: Biodiesel is highly hygroscopic and tends to col-
lect water more than diesel fuel. This increases the risk of
algae and bacteria growth which can cause severe dam-
age to the fuel injection system. Keep the machine fuel
tanks and on-site storage tanks as full as possible to limit
the amount of air and water vapors inside the tank. Drain
water from the tanks at least once a week.
If the machine should be stored for long periods, make
sure to replace the diesel fuel every three months at most.
6-5

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