12.3
System oils
System oil has the functions that follow:
•
System oil lubricates the bearings, the running parts of the engine and the crosshead
assemblies.
•
System oil decreases the temperature of the pistons and the vibration dampers.
•
System oil is used as hydraulic fluid in the servo oil system.
12.3.1
Requirements for system oil
The system oil must have the basic properties that follow:
•
An additive-type crankcase oil of SAE 30 viscosity
•
Minimum Base Number (BN) of 5 mg KOH/g
•
Minimum failure load stage of 11 ± 1 related to the FZG gear oil test method A/8.3/90
(ISO 14635-1)
•
Detergency properties
•
Thermal stability
•
Anti-corrosion properties
•
Anti-foam properties
•
Demulsifying performance.
You find a list of applicable and validated system oils in
.
12.3.2
Recommended procedure for system oil maintenance
WinGD recommends to install a self-cleaning centrifugal separator in the plant oil system. Thus
you can keep the system oil in good condition for a long period.
•
There is always a risk that water, specially sea water, can enter the system oil and cause
corrosion on engine parts. Water contamination can also cause bacterial contamination of
the system oil, which gives a decrease in lubrication performance and gives heavy corrosion
of the engine parts. Thus solid contaminants (dirt) and water must be removed from the
system oil as completely as possible.
•
The self-cleaning centrifugal separator is used as a purifier in bypass mode. The oil flows
from the oil tank through the centrifugal separator. Set the oil flow through the centrifugal
separator related to the manufacturer of the centrifugal separator. WinGD recommends an
oil temperature for this treatment of 95°C unless the manufacturer of the centrifugal
separator recommends differently.
X52
AA00-0000-00AAA-030F-A
Operation Manual
System oils
Winterthur Gas & Diesel Ltd.
- 446 -
Issue 002 2018-11
Содержание X52
Страница 8: ...Page left intentionally blank 8 ...
Страница 113: ...Page left intentionally blank 113 ...
Страница 275: ...7 Installation 7 1 Installation 276 275 ...
Страница 487: ...13 Schematic diagrams 13 1 Schematic diagrams general 488 13 2 List of diagrams 494 487 ...