en / 21.08.2001
BA020067
1/8
1.
Engine Lubricating Oil
The quality of the engine oil has a large influence on the service life and engine efficiency and thus
the economical operation.
High demands must therefore be placed on the lubricants to be used in respect of suitability.
The oil to be used should be selected according to the specifications of the fuel which is used to run
the engine.
When using heavy fuel the effect of the increased amounts of coke-type and acid deposits which
form during combustion as a result of the high ash and sulfur content, must be rendered harmless
and for this reason only lubricating oils which have been developed for medium-speed trunk piston
Diesel engines are approved.
On engines which are equipped with special cylinder lubrication the same oil should be used in the
circulation system and for the cylinder lubrication.
1.1
Base Oil
The base oil should be a high-quality solvent refined product from a source suitable for engine lub-
ricating oil and have a good oxidation stability as well as a good load carrying capacity and thermo-
stability.
Regenerated oils are not permitted.
1.2
Additives
The additives in the oil must remain effective and uniformly distributed at all temperatures occur-
ring in normal operation between pour point and 220 °C as well as in storage and also fulfil the fol-
lowing requirements in Caterpillar/MaK engines:
1.2.1
Good detergent and dispersant properties (which for heavy fuel operation equals at least
the API-CF level) to prevent the depositing of combustion products (coke and asphalt-like
compositions) or dissolves these deposits and keeps them in suspension.
1.2.2
Have an adequate alkalinity in order to be able to neutralize the sulfur acid compositions
which occur during the combustion process. This is usually given as the Base Number
(BN), or as Alkalinity Value (AV) and recorded in mgKOH/g. For Caterpillar/MaK engines
operating on heavy fuel this value should be between 30 and 40 mg KOH/g for fresh oils.
Summary of Contents for M20
Page 5: ...Technical engine data A1 M20 M601C en 31 10 2001 AA000103 1 1 Technical engine data...
Page 6: ...Governor data A1 04 en 18 02 2000 AA000097 1 1 Governor data not installed on CD Rom...
Page 11: ...Operating instructions A3 M20 M601C en 31 10 2001 AA000108 1 1 Operating instructions...
Page 30: ...Initial operation Engine A3 05 00 en 14 02 2001 BA000022 1 1 Initial operation...
Page 44: ...Operational supervision Engine A3 06 00 en 15 02 2001 BA000058 1 1 Operational supervision...
Page 64: ...Removal from operation Engine A3 07 00 en 16 02 2001 BA000094 1 1 Removal from operation...
Page 71: ...Danger of frost Engine A3 08 00 en 16 02 2001 BA000106 1 1 Danger of frost...
Page 83: ...Running in Engine A3 10 00 en 16 02 2001 BA000242 1 1 Running in...
Page 85: ...Fault tracing Engine A3 11 00 en 19 02 2001 BA000130 1 1 Fault tracing...
Page 91: ...Emergency operation Engine A3 12 00 en 19 02 2001 BA000142 1 1 Emergency operation...
Page 102: ...Operating media A4 en 31 10 2001 AA020105 1 1 Operating media...
Page 106: ...Regulations and care Engine A4 05 00 en 21 02 2001 BA000158 1 1 Regulations and care...
Page 137: ...Maintenance A5 en 31 10 2001 AA000026 1 1 Maintenance...
Page 166: ...Periodical schedule Heavy fuel A5 04 02 M20 en 31 10 2001 AA021679 8 8...
Page 242: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 3 4 02 1 2 3...
Page 243: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 4 4 02 4 5 6...
Page 435: ...Table of contents A6 01 en 31 10 2001 AA020050 1 1 Tools A6 Table of contents A6 01...