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Service and maintenance
8.3 Checking and changing lubricants
8.3.6
Checking the oil quality
Visible signs show effects on the oil. Fresh oil is clear to the eye, and has a typical smell and a
specific product color. Clouding or a flocculent appearance indicates water and / or
contamination. A dark or black color indicates residue, serious thermal decomposition or
contamination.
Observe the symbols in the diagrams of the Mounting positions (Page 115):
Venting
Procedure
1. Allow the geared motor to run for a short time. Wear and contaminant particles are visible in
the oil shortly after shutting down.
2. Switch off the power supply to the drive unit.
3. Unscrew the sealing element at one of the points marked with the symbols listed above.
4. Remove some oil, using a suction pump and a flexible hose, for example.
5. Check the state of the sealing ring on the sealing element. When required, replace the
sealing ring.
6. Seal the gearbox with the sealing element.
7. Check the oil for abnormalities. Change the oil immediately if you determine any
abnormalities, see Changing the oil (Page 83).
You have now checked the oil quality.
82
Oil level
Operating Instructions, 02/2021, A5E37880173A/RS-AM
BA 2030
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