12.3.6.3
Particle number increases
If the particle number of the particle count increases above the limits given in
the procedures that follow in the given sequence:
•
For an engine with a servo oil filter:
○
Do a check of the servo oil filter. If necessary, replace the filter element or repair the
filter.
•
For all engines:
○
Do a check of the centrifugal separator. If necessary, adjust the flow rate or the
temperature to increase the performance of the centrifugal separator. Refer to the
manufacturers recommendations.
○
Do a check of all piston rod gland boxes. If necessary, replace the sealing rings of
the related gland box or repair the gland box.
○
Make an element analysis of the particles. This gives data about worn components
in the engine. Repair the related components.
○
Make a replenishment of the system oil. This can include a change of some of the oil
or of all of the oil in the oil system.
This prevents damage from abrasive particles of the related engine parts.
12.3.7
Recommended procedure for gear wheels
If you install a new gear wheel or if you have polished a gear wheel, the FZG load stage of the
system oil must be at a satisfactory value. This prevents scuffing of the gear wheels during the
running-in of the gear wheels.
If you have used the system oil for more than one year, make the FZG gear oil test (test method
A/8.3/90, ISO 14635-1). If the related alert or condemnation value is given (refer to
Alert and condemnation limits for system oil
), do a replenishment of the system oil before you do
the running-in.
X52
AA00-0000-00AAA-030F-A
Operation Manual
System oils
Winterthur Gas & Diesel Ltd.
- 452 -
Issue 002 2018-11
