WinGD X72DF - Lubricating Oil Systems; Lubricating Oil Requirements; Main Lubricating Oil System; Lubricating Oil System

Marine Installation Manual 2021-08 4-17
4 Ancillary Systems
4.3 Lubricating oil systems
X72DF
4.3 Lubricating oil systems
The latest version of the Marine Installation Drawing Set relevant for the lubri-
cating oil system (DG 9722) is provided on the WinGD webpage under the fol-
lowing link:
MIDS
4.3.1 Lubricating oil requirements
The validated lubricating oils were selected in co-operation with the oil suppliers.
In their respective product lines the products are considered as appropriate lubri-
cants for the application indicated.
WinGD does not accept any liability for the quality of the supplied lubricating
oil or its performance in actual service.
The validated cylinder and system oils are published in the document Lubricants
provided on the WinGD webpage under the following link:
Lubricants
4.3.2 Main lubricating oil system
Field of application
Lubrication of the main bearings, thrust bearings, bottom-end bearings, together
with piston cooling, is carried out by the main lubricating oil system.
The main bearing oil is also used to cool the piston crown and to lubricate and
cool the torsional and axial vibration dampers.
Figure 4-8 shows the general installation principle.
Lubrication of
crosshead bearings
The crosshead bearings are lubricated by an additional crosshead pump (specifi-
cation see Booster pump for crosshead lubrication,  4-19).
Figure 4-8 Lubricating oil system
SM-0205
5
1
2
6
3
Main
Engine
1 Lubricating oil drain tank
2 Lubricating oil pump
3 Lubricating oil cooler
4 Automatic temperature control valve
5 Automatic self-cleaning lter with
5 backushing oil treatment
6 Crosshead lubricating oil pump
4
(Set-point: 45 °C)