13 MAINTENANCE AND INSPECTION
13.1 GEARBOX AND MOTOR
The gearbox and motor are delivered ready for operation. They are filled with the required volume of oil
and maintenance-free. After approx. 10,000 operating hours, but no later than every 2 years, the oil
must be changed and the bearing inspected; details on this work can be found in the gearbox and mo-
tor documentation.
Perform a daily visual inspection during operation to ensure that the seals of the gearbox and machine
are tight.
Check the oil level of the gearbox roughly twice per year. Other than a regular supply of sealing medi-
um, the FAN press screw separator normally requires little maintenance.
13.1.1 Supply of sealing medium
When using sealing media and grease, it must be guaranteed that they are com-
patible with the seals (material FPM). As a rule grease of viscosity class 2 is used,
such as Alvania EP 2 from Shell, Beacon EP 2 from Esso or Aralub HLP 2 from
Aral.
On a separator in operation, it is important to supply sealing me-
dium to the blocking seal in the attached unit against the inflow
housing in order to protect the seals in the attached unit from the
medium being separated. This can be accomplished with sealing
grease.
For this purpose, a grease press
must be used every 250 operating
hours or every 2 weeks to introduce
roughly 3 to 5 cm
3
of grease via the
lubricating nipple.
The grease should be supplied while
the machine is running to ensure that
the entire seal area is filled with seal-
ing medium. The use of an automatic
lubricator is even better.
Lubricate the other lubricating nipples on the geared motor 1x
per year.
To safeguard the function of the seal, check the inspection open-
ing on the bottom of the flange. If sealing medium, water or for-
eign substances escape here, the blocking seal is damaged or
worn and must be replaced. If the blocking seal is not replaced,
the supply medium can clog the inspection window over time and
also damage the second seal, allowing the medium to damage
the bearing and/or the gearbox. It is therefore very important to
regularly check the inspection opening on the bottom of the
flange. No medium should escape from this opening; otherwise,
the blocking seal is damaged and must be replaced.
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