Man B&W S50MC-C8-TII - Lubricating Oil Full Flow Filter; Flushing of Lube Oil System

MAN B&W 8.05
Page 2 of 3
MAN Diesel
MAN B&W L60MC-C7/8, L60MEC7/8, S50MC-C7/8,
S50MEC7/8, S50ME-B8/9
198 42 424.5
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
*Theabsolutenenesscorrespondstoanominal
nenessofapproximately25µmataretaining
rateof90%.
The ow capacity must be within a range from
00 to 2% of the capacity stated.
The fullow lter should be located as close as
possible to the main engine.
If a double lter (duplex) is installed, it should
have sufcient capacity to allow the specied 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 backushing arrangement is in-
stalled, the following should be noted:
• The required oil ow, specied in the ‘List of
capacities’, should be increased by the amount
of oil used for the backushing, 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 specied. 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.