MAN B&W 8.05
Page 2 of 3
MAN Diesel
MAN B&W S46MC-C, S46ME-B, S42MC, S40MC-C,S40ME-B,
S35MC, S35MC-C, S35ME-B, L35MC, S26MC
198 59 104.2
Lubricating oil full flow filter
Lubricating oil flow .............. see ‘List of capacities’
Working pressure .........................................4.0 bar
Test pressure .....................according to class rules
Absolute fineness .........................................40 µm*
Working temperature ............. approximately 45 °C
Oil viscosity at working temp. ............. 90 100 cSt
Pressure drop with clean filter ....maximum 0.2 bar
Filter to be cleaned
at a pressure drop .......................maximum 0.5 bar
* The absolute fineness corresponds to a nominal
fineness of approximately 25 µm at a retaining
rate of 90%.
The flow capacity must be within a range from
100 to 112% of the capacity stated.
The fullflow filter should be located as close as
possible to the main engine.
If a double filter (duplex) is installed, it should
have sufficient capacity to allow the specified full
amount of oil to flow through each side of the filter
at a given working temperature with a pressure
drop across the filter of maximum 0.2 bar (clean
filter).
If a filter with a backflushing arrangement is in-
stalled, the following should be noted:
• The required oil flow, specified in the ‘List of
capacities’, should be increased by the amount
of oil used for the backflushing, so that the
lubricating oil pressure at the inlet to the main
engine can be maintained during cleaning.
• If an automatically cleaned filter is installed, it
should be noted that in order to activate the
cleaning process, certain makes of filter require
a higher oil pressure at the inlet to the filter than
the pump pressure specified. Therefore, the
pump capacity should be adequate for this pur-
pose, too.
Flushing of lube oil system
Before starting the engine for the first 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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