MAN B&W 8.05
Page 2 of 3
MAN Diesel
MAN B&W L60MC-C7/8, L60MEC7/8, S50MC-C7/8,
S50MEC7/8, S50ME-B8/9
198 42 424.5
Lubricating oil full ow lter
Lubricating oil ow ..............see ‘List of capacities’
Working pressure ......................................... 4. bar
Test pressure .................... according to class rules
Absolute neness .........................................40 µm*
Working temperature ............. approximately 45 °C
Oil viscosity at working temp. ............. 90 00 cSt
Pressure drop with clean lter ....maximum 0.2 bar
Filter to be cleaned
at a pressure drop .......................maximum 0.5 bar
*Theabsolutenenesscorrespondstoanominal
nenessofapproximately25µmataretaining
rateof90%.
The ow capacity must be within a range from
00 to 2% of the capacity stated.
The fullow lter should be located as close as
possible to the main engine.
If a double lter (duplex) is installed, it should
have sufcient capacity to allow the specied full
amount of oil to ow through each side of the lter
at a given working temperature with a pressure
drop across the lter of maximum 0.2 bar (clean
lter).
If a lter with a backushing arrangement is in-
stalled, the following should be noted:
• The required oil ow, specied in the ‘List of
capacities’, should be increased by the amount
of oil used for the backushing, so that the
lubricating oil pressure at the inlet to the main
engine can be maintained during cleaning.
• If an automatically cleaned lter is installed, it
should be noted that in order to activate the
cleaning process, certain makes of lter require
a higher oil pressure at the inlet to the lter than
the pump pressure specied. Therefore, the
pump capacity should be adequate for this pur-
pose, too.
Flushing of lube oil system
Before starting the engine for the rst time, the lu-
bricating oil system on board has to be cleaned in
accordance with MAN Diesel’s recommendations:
‘Flushing of Main Lubricating Oil System’, which is
available on request.
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