Service and maintenance
8.2 Checking and changing lubricants
BA 2030 (2KJ4)
Operating Instructions, 07/2020, A5E50009094A/RS-AL
63
Procedure
1. Switch off the power supply to the drive component.
2. Unscrew the oil level screw, see Mounting positions (Page 84). Oil escapes if the maximum
fill level is above the plug hole.
3. Check the oil level. Observe the fill level x.
4. Top up the oil level if necessary and check it again.
5. Check the state of the sealing ring on the sealing element. If the sealing ring is damaged,
replace the sealing element with a new one.
6. After checking, seal the gearbox immediately using the sealing element.
You have now checked the oil level in the gearbox housing.
8.2.3 Checking the oil level using the oil sight glass (optional)
If there is an oil sight glass to check the oil level â‘ , the oil must be visible in the center of the
sight glass when the oil is cool. When the oil is hot, the oil level â‘ is above the center of the
sight glass. The oil level â‘ of cold oil is below the center of the sight glass.
Figure 8-2 Oil level in the oil sight glass
Top up the oil level â‘ if necessary, and check it again.
8.2.4 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 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 84):
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 component.
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