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PERIODIC MAINTENANCE
EPA REQUIREMENTS
The EPA emission regulation is applicable
only in USA.
Conditions to Ensure
Compliance with EPA Emission
Standards
This product is an EPA-approved engine.
The following are the conditions that must be
met in order to ensure that the emissions
during operation meet the EPA standards:
• Ambient temperature: -16° to +40°C
(3° to 104°F)
• Relative humidity: 80% or lower
The fuel and lubricating oil used should be
as follows:
• Diesel fuel: ASTM D975 No. 1–D or No. 2–
D, or equivalent (minimum cetane No. 45)
• Lubricating oil: Type API, Class SM, SL,
SJ, SH/CF and CF
Be sure to perform inspections as outlined
in Periodic Maintenance Procedures on
page 48 and keep a record of the results.
Pay particular attention to these important
points:
• Replacing the engine oil
• Replacing the lube oil filter
• Replacing the fuel filter
• Cleaning the air filter
Note: Inspections are divided into two
sections in accordance with who is
responsible for performing the inspection:
the user or the maker.
40
Inspection and Maintenance
See Inspection and Maintenance of EPA
Emission-Related Parts on page 46.
Inspection and maintenance procedures
not shown in the Inspection and
Maintenance of EPA Emission-Related
Parts on page 46 are covered in Periodic
Maintenance Schedule on page 42.
This maintenance must be performed to
keep the emission values of your engine in
the standard values during the warranty
period. The warranty period is determined
by the age of the engine or the number of
hours of operation. See Yanmar Co., Ltd.
Limited Emission Control System Warranty
- USA Only on page 75.
Tightening Fasteners
Use the correct amount of torque when you
tighten fasteners on the machine. Applying
excessive torque may damage the fastener
or component and not enough torque may
cause a leak or component failure.
© 2008 Yanmar Marine International
BY Series Operation Manual
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