MAK M 20 - Lubricating Oil System

Lubricating Oil System
Maintenance / Oil change
A5.05. 08.02.01.00
M20
en / 31.05.2010 IB001483 1/2
08
See also: A4.05.08.nn, A5.05.08.04.01.nn
Spare parts list: B1.05.08.2.64n0, B1.05.08.2.7810
Time requirement: 1 Pers./ 2,00 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Sequence of operations:
1. Drain the engine circulation system
and lubricating oil circulation tank.
2. Clean the tank and crankcase
if necessary.
3. If necessary, remove oil pressure control
valve (Fig. 1/1), check pressure spring
and valve seat.
Lift off pressure = 4.0 bar
4. Inspect strainer (2) at the suction side of
the lubricating oil pumps and clean
if necessary.
5. Clean lubricating oil duplex filter and lubri-
cating oil automatic filter.
6. Remove and clean lubricating oil cooler
(see manufacturer's documentation Book
C).
7. Refill new lubricating oil up to the respective mark on the sump tank (lubricating oil quality, see
NOTE
The strainer on the suction side of the lubricating oil pumps must be checked and
cleaned, if necessary, 24 to 48 hours of operation after the start- up of a new installa-
tion or working on the suction side of the lubricating oil piping system.
The oil change interval depends on the following:
• Lubricating oil quality
• Engine operating conditions
• Lubricating oil consumption
• Lubricating oil filtering and centrifugal purifying
• Quantity of lubricating oil in the system
The oil change interval can be extended if allowed by the results of the oil analysis.
For permissible analysis values (see A4.05.08.nn, Regulations and Care, Engine
Lubricating Oil).
1
2
Fig. 1