MAN B&W
9.01
Page 1 of 2
MAN Diesel
MAN B&W MEC/ME-B/-GI engines Mark 8.1 and higher
198 85 59-8.2
Fig. 9.01.01: Cylinder lubricating oil system
178 52 376.3
Deck
AC
Filling
pipe
Heater with set
point of 45 °C
Small heating box
with filter
Level alarm
Cylinder oil
storage or
service tank
Cylinder oil
storage or
service tank
High BN CLO
Min. 2,000 mm
Min. 3,000 mm
Low BN CLO
The letters refer to list of ‘Counterflanges’
Cylinder Lubricating Oil System
The cost of the cylinder lubricating oil is one of the
largest contributions to total operating costs, next
to the fuel oil cost. Another aspect is that the lu-
brication rate has a great influence on the cylinder
condition, and thus on the overhauling schedules
and maintenance costs.
It is therefore of the utmost importance that the
cylinder lubricating oil system as well as its opera-
tion is optimised.
Cylinder oils
In short, MAN Diesel and Turbo recommends the
use of cylinder oils with the following main proper-
ties:
• SAE 50 viscosity grade
• high detergency
• BN 100 for high-sulphur fuel
• BN 40 for low-sulphur fuel.
A BN 100 cylinder oil is to be used as the default
choice of oil and it may be used on all fuel types.
However, in case of the engine running on fuel
with sulphur content lower than 1.5% for more
than 2 weeks, we recommend to change to a
lower BN cylinder oil such as a BN 40.
Two-tank cylinder oil supply system
Fig. 9.01.01 shows a cylinder oil supply system
with separate tanks for cylinder oils with high and
low BN.
Cylinder oil feed rate (dosage)
Adjustment of the cylinder oil dosage to the sul-
phur content in the fuel being burnt is further ex-
plained in Section 9.02.
Further information about cylinder lubrication on
different fuel types is available in our publication:
Operation on Low-Sulphur Fuels
The publication is available at www.marine.man.
eu
→
’Two-Stroke’
→
’Technical Papers’.
Summary of Contents for B&W S50ME-B9.3-TII
Page 4: ......
Page 10: ......
Page 11: ...MAN B W MAN Diesel Engine Design 1 ...
Page 12: ......
Page 27: ...MAN B W MAN Diesel Engine Layout and Load Diagrams SFOC 2 ...
Page 28: ......
Page 53: ...MAN B W MAN Diesel Turbocharger Selection Exhaust Gas By pass 3 ...
Page 54: ......
Page 58: ......
Page 59: ...MAN B W MAN Diesel Electricity Production 4 ...
Page 60: ......
Page 92: ......
Page 93: ...MAN B W MAN Diesel Installation Aspects 5 ...
Page 94: ......
Page 124: ......
Page 133: ...MAN B W MAN Diesel List of Capacities Pumps Coolers Exhaust Gas 6 ...
Page 134: ......
Page 154: ......
Page 155: ...MAN B W MAN Diesel Fuel 7 ...
Page 156: ......
Page 170: ......
Page 171: ...MAN B W MAN Diesel Lubricating Oil 8 ...
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Page 188: ......
Page 189: ...MAN B W MAN Diesel Cylinder Lubrication 9 ...
Page 190: ......
Page 199: ...MAN B W MAN Diesel Piston Rod Stuffing Box Drain Oil 10 ...
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Page 203: ...MAN B W MAN Diesel Central Cooling Water System 11 ...
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Page 209: ...MAN B W MAN Diesel Seawater Cooling System 12 ...
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Page 221: ...MAN B W MAN Diesel Starting and Control Air 13 ...
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Page 227: ...MAN B W MAN Diesel Scavenge Air 14 ...
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Page 239: ...MAN B W MAN Diesel Exhaust Gas 15 ...
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Page 254: ......
Page 255: ...MAN B W MAN Diesel Engine Control System 16 ...
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Page 265: ...MAN B W MAN Diesel Vibration Aspects 17 ...
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Page 281: ...MAN B W MAN Diesel Monitoring Systems and Instrumentation 18 ...
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Page 307: ...MAN B W MAN Diesel Dispatch Pattern Testing Spares and Tools 19 ...
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Page 323: ...MAN B W MAN Diesel Project Support and Documentation 20 ...
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Page 333: ...MAN B W MAN Diesel Appendix A ...
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