WÄRTSILÄ PAAE051728, Инструкция по эксплуатации

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BN 30 lubricants are recommended to be used only in special cases,
such as installations equipped with an SCR catalyst. Lower BN
products eventually have a positive influence on cleanliness of the
SCR catalyst. With BN 30 oils lubricating oil change intervals may be
rather short, but lower total operating costs may be achieved
because of better plant availability provided that the maintenance
intervals of the SCR catalyst can be increased.
BN 30 oils are also a recommended alternative when operating on
crude oil. Though crude oils many times have low sulphur content,
they can contain other acid compounds and thus an adequate
alkali reserve is important.
Additives. The oils should contain additives that give good oxidation
stability, corrosion protection, load carrying capacity, neutralization
of acid combustion and oxidation residues, and should prevent
deposit formation on internal engine parts (piston cooling gallery,
piston ring zone and bearing surfaces in particular).
Foaming characteristics. Fresh lubricating oil should meet the fol-
lowing limits for foaming tendency and stability (according to the
ASTM D 892-92 test method):
·
Sequence I: 100/0 ml
·
Sequence II: 100/0 ml
·
Sequence III: 100/0 ml
In this test a certain amount of air is blown through the lubricating
oil sample. The first number in the results is the foam volume after a
blowing period of 5 minutes and should be less than or equal to 100
ml. The second number is the foam volume after a settling period
of 10 minutes and should always be 0 ml.
Sequences I and III are performed at a temperature of 24 °C and
sequence II at a temperature of 93.5 °C.
02.2.2 Lubricating oil qualities
Lubricating oil is an integrated engine component and thus the
quality of it is upmost important. All lubricating oils, which have
been approved for use in WÄRTSILÄ
®
Vasa 32, WÄRTSILÄ
®
Vasa
32LN, WÄRTSILÄ
®
20, WÄRTSILÄ
®
32, WÄRTSILÄ
®
46 and WÄRT-
SILÄ
®
46F engine types, have gone through an approval test
according to the engine manufacturer’s procedure.
The use of approved lubricating oil qualities during the warranty
period is mandatory and is also strongly recommended after the
warranty period.
The list of approved lubricating oils can be found in the end of this
chapter.
Note! Never blend different oil brands unless approved by the oil supplier,
and during the warranty period, by the engine manufacturer.
200549-01 Fuel, Lubricating Oil, Cooling Water
W20/W32/W46, W46F, 32, 32LN 02 - 13