There are no prescribed oil change intervals for MAN Diesel & Turbo medium
speed engines. The oil properties must be analysed monthly. As long as the
oil properties are within the defined threshold values, the oil may be further
used. See table
Limit values for used lubricating oil
.
The quality of the oil can only be maintained if it is cleaned using suitable
equipment (e.g. a separator or filter).
Due to current and future emission regulations, heavy fuel oil cannot be used
in designated regions. Low-sulphur diesel fuel must be used in these regions
instead.
If the engine is operated with low-sulphur diesel fuel for less than 1,000 h, a
lubricating oil which is suitable for HFO operation (BN 30 – 55 mg KOH/g)
can be used during this period.
If the engine is operated provisionally with low-sulphur diesel fuel for more
than 1,000 h and is subsequently operated once again with HFO, a lubricat-
ing oil with a BN of 20 must be used. If the BN 20 lubricating oil from the
same manufacturer as the lubricating oil is used for HFO operation with
higher BN (40 or 50), an oil change will not be required when effecting the
changeover. It will be sufficient to use BN 20 oil when replenishing the used
lubricating oil.
If you wish to operate the engine with HFO once again, it will be necessary to
change over in good time to lubricating oil with a higher BN (30 – 55). If the
lubricating oil with higher BN is by the same manufacturer as the BN 20 lubri-
cating oil, the changeover can also be effected without an oil change. In
doing so, the lubricating oil with higher BN (30 – 55) must be used to replen-
ish the used lubricating oil roughly 2 weeks prior to resuming HFO operation.
Limit value
Procedure
Viscosity at 40 °C
110 – 220 mm²/s
ISO 3104 or ASTM D 445
Base number (BN)
at least 50 % of fresh oil
ISO 3771
Flash point (PM)
At least 185 °C
ISO 2719
Water content
max. 0.2 % (max. 0.5 % for brief peri-
ods)
ISO 3733 or ASTM D 1744
n-heptane insoluble
max. 1.5 %
DIN 51592 or IP 316
Metal content
depends on engine type and operat-
ing conditions
–
Guide value only
Fe
Cr
Cu
Pb
Sn
Al
max. 50 ppm
max. 10 ppm
max. 15 ppm
max. 20 ppm
max. 10 ppm
max. 20 ppm
–
Table 4: Limit values for used lubricating oil
Tests
A monthly analysis of lube oil samples is mandatory for safe engine opera-
tion. We can analyse fuel for customers in the MAN Diesel & Turbo Prime-
ServLab.
Oil during operation
Temporary operation with
gas oil
Specification of lubricating oil (SAE 40) for heavy fuel operation (HFO)
D010.000.023-11-0001
General
2017-07-11 - de
010.000.023-11
MAN Diesel & Turbo
4 (5)
D010.000.023-11-0001 EN
Summary of Contents for L23/30DF
Page 1: ...L27 38S Project Guide Power Plant Four stroke GenSet...
Page 2: ......
Page 8: ......
Page 9: ...MAN Diesel Turbo I 00 Introduction Page 1 1 I 00 Introduction 2018 04 13 en...
Page 10: ......
Page 14: ......
Page 16: ......
Page 20: ......
Page 31: ...MAN Diesel Turbo D 10 General information Page 1 1 D 10 General information 2018 04 13 en...
Page 32: ......
Page 40: ......
Page 42: ......
Page 46: ......
Page 48: ......
Page 50: ......
Page 59: ...MAN Diesel Turbo B 10 Basic diesel engine Page 1 1 B 10 Basic diesel engine 2018 04 13 en...
Page 60: ......
Page 68: ......
Page 70: ......
Page 72: ......
Page 74: ......
Page 76: ......
Page 82: ......
Page 84: ......
Page 85: ...MAN Diesel Turbo B 11 Fuel oil system Page 1 1 B 11 Fuel oil system 2018 04 13 en...
Page 86: ......
Page 104: ......
Page 114: ......
Page 118: ......
Page 126: ......
Page 128: ......
Page 130: ......
Page 134: ......
Page 138: ......
Page 142: ......
Page 173: ...MAN Diesel Turbo B 13 Cooling water system Page 1 1 B 13 Cooling water system 2018 04 13 en...
Page 186: ......
Page 192: ......
Page 198: ......
Page 202: ......
Page 204: ......
Page 207: ...MAN Diesel Turbo B 14 Compressed air system Page 1 1 B 14 Compressed air system 2018 04 13 en...
Page 210: ......
Page 216: ......
Page 217: ...MAN Diesel Turbo B 15 Combustion air system Page 1 1 B 15 Combustion air system 2018 04 13 en...
Page 218: ......
Page 224: ......
Page 226: ......
Page 227: ...MAN Diesel Turbo B 16 Exhaust gas system Page 1 1 B 16 Exhaust gas system 2018 04 13 en...
Page 228: ......
Page 252: ......
Page 256: ......
Page 269: ...MAN Diesel Turbo B 17 Speed control system Page 1 1 B 17 Speed control system 2018 04 13 en...
Page 270: ......
Page 272: ......
Page 282: ......
Page 284: ......
Page 286: ......
Page 293: ...ENGINE AUTOMATION MAN Diesel Turbo SE SaCoSone GENSET System description Revision 1 5...
Page 306: ...MAN Diesel Turbo SaCoSone GENSET SaCoSone GENSET Communication from GenSet Revision 1 7...
Page 309: ...MAN Diesel Turbo Table of Contents...
Page 324: ......
Page 326: ......
Page 327: ...MAN Diesel Turbo B 20 Foundation Page 1 1 B 20 Foundation 2018 04 13 en...
Page 328: ......
Page 334: ......
Page 335: ...MAN Diesel Turbo B 21 Test running Page 1 1 B 21 Test running 2018 04 13 en...
Page 336: ......
Page 341: ...MAN Diesel Turbo E 23 Spare parts Page 1 1 E 23 Spare parts 2018 04 13 en...
Page 342: ......
Page 348: ......
Page 350: ......
Page 351: ...MAN Diesel Turbo P 24 Tools Page 1 1 P 24 Tools 2018 04 13 en...
Page 379: ...MAN Diesel Turbo B 50 Alternator Page 1 1 B 50 Alternator 2018 04 13 en...
Page 380: ......
Page 386: ......
Page 390: ......
Page 392: ......