IHI NIIGATA MG(L)26HLX, Инструкция по эксплуатации

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S E C T I O N 1 - O U T L I N E
1.3 LUBRICATING OIL SPECIFICATIONS
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1.3 LUBRICATING OIL SPECIFICATIONS
CAUTION : Never mix different brands of lubricating oil even if they are
recommended brands.
Proper selection and monitoring of the lubricating oil is essential for
satisfactory engine performance and life. The lubricating oil must be from a
list approved by Niigata for the application and fuel-type being used.
All instructions from Niigata and its dealers concerning lubricating oil must be
followed to assure warranty coverage.
CAUTION
Be sure to put on safety goggles in carrying out the following items of
work being in danger of injury to eyes.
・
When handling lubricating oil
1.3.1 Selection of Lubricating Oil
(1) Viscosity
Lubricating oil of SAE40 viscosity must be used for this engine.
WARNING: Multi-viscosity oils (eg., 15W-40) are not to be used.
(2) Base Number
The total base number (TBN) provides a relative measure of the oil's
ability to neutralize acidic material and provides some indication of it's
antiwear and antirust capabilities. The desired TBN of new oil depends upon
the sulfur content of the fuel being used. When using heavy fuels (Class C
or D), the TBN of new oil should be 20 or higher. (Recommended values for
each class of fuel are given in the Recommended Oil List that follows).
At each periodic inspection (every 500 hours), a sample of lubricating oil
must be analyzed to determine the TBN. Minimum acceptable values (depending
upon the sulfur content of the fuel being used) are shown below:
Sulfur content Min. TBN value
of fuel
2.0% or higher 20
>1.0% but <2.0% 15
≦
1.0% 8
If the analyzed values are less than the minimum values shown above, the oil
should be changed or sufficient new oil added to bring the TBN up to an
acceptable level.