02.2
Lubricating oil
02.2.1 System oil characteristics
Viscosity. Viscosity class SAE 30 or SAE 40. SAE 40 is preferred.
Alkalinity. The required lubricating oil alkalinity is tied to the
fuel specified for the engine, which is shown in the table below.
Fuel standards and lubricating oil requirements
Category
Fuel standard
Lube oil BN
A
ASTM D 975-81,
BS 6843: 1987
BS 2869-1983,
ISO 8217: 1987(E)
GRADE ID, 2D,
PROPOSED 3D
ISO-F-DMX, DMA
CLASS A1, A2
ISO-F-DMX, DMA
10 - 40
B
ASTM D 975-81,
BS 6843: 1987
ISO8217: 1987(E)
GRADE 4D
ISO-F-DMB
ISO-F-DMB
15 - 40
C
ASTM D 396,
BS 6843: 1987
CIMAC 1986,
ISO 8217: 1987(E)
GRADE NO 4-6
ISO-F-DMC, RMA10-RML55
CIMAC A10-K55
ISO-F-DMC, RMA10-RML55
25 - 40
It is recommended to use BN 40 lubricants with category C fuels.
If very low sulphur residual fuel is used, BN 30 lubricants can be
used. BN 30 lubricants can also be used if experience shows that
the lubricating oil BN equilibrium remains at an acceptable level.
Additives. The oils should contain additives that give good
oxidation stability, corrosion protection, load carrying capacity,
neutralization of acid combustion and oxidation residues, prevent
deposit formation on internal engine parts (piston ring zone and
bearing surfaces in particular).
Foaming characteristics. Fresh lubricating oil should meet the
following 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 certain amount of air is blown through the lubricat-
ing 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.
Classification. The oil should meet the API Service CD classifi-
cation.
02
Fuel, Lubricating Oil, Cooling Water
22-9601
02 - 10
VASA 22
Содержание Vasa R22
Страница 14: ...Appendix B Welding Precautions 200147 00 4...
Страница 42: ...02 Fuel Lubricating Oil Cooling Water 22 9601 02 22 VASA 22...
Страница 60: ...03 Start Stop and Operation 22 9632 03 12 VASA 22...
Страница 72: ...04 Maintenance Schedule 22 9845 III 04 12 MD HF...
Страница 92: ...06 II Adjustments Clearances and Wear limits 22 9601 06 6 VASA 22...
Страница 116: ...08 Operating Troubles Emergency Operation 22 9601 08 8 VASA 22...
Страница 143: ...Diagram for 8V22 balancing system 1 2 3 4 Fig 11 7 2211539545 22 9601 Crank Mechanism 11 VASA 22 11 17...
Страница 144: ...11 Crank Mechanism 22 9601 11 18 VASA 22...
Страница 156: ...12 Cylinder Head with Valves 22 9601 12 12 VASA 22...
Страница 164: ...13 Camshaft Driving Gear 22 9601 13 8 VASA 22...
Страница 172: ...14 Valve Mechanism and Camshaft 22 9601 14 8 VASA 22...
Страница 183: ...22 200520 Turbocharging and Air Cooling 15 VTR Turbocharger 15 11...
Страница 189: ...15 III Turbocharging and Air Cooling 22 8604 15 6 VTR 161 251 Turbochargers...
Страница 209: ...17 Fuel system 22 9601 17 8 VASA 22...
Страница 229: ...18 Lubricating Oil System 22 9601 18 20 VASA 22...
Страница 247: ...19 Cooling Water System 22 9601 19 18 VASA 22...
Страница 261: ...21 Starting Air System 22 9601 21 10 VASA 22...