Emerson Bettis RTS FQ Series Operating Manual page 72

Section 12: Maintenance
February 2019
The actuators are designed for any mounting position (See Section 3.3), which is why there
is neither a filling level indicator nor a drain plug on the main casing.
Depending on the stressing subjected to, do the following approx. every 10,000 to 20,000
hours (about 5 years; see Section 15):
•
•
•
Take the types of oils and greases to be used from our Lubricant Table. (See Section 15).
Check the cable glands at regular intervals (annually) for tightness of the cables and
retighten if necessary.
If the visual inspection (eg. dust or water penetration) indicates that the effectiveness of
the Sealing elements of the cable entry has suffered damage or aging, such elements have
to be replaced preferably by using the original spare parts from the manufacturer of the
equipment or through cable entries of comparable quality as well as the same ex- or IP
protection class.
Figure 66
1
67
Oil change
Replace seals
Check all the roller bearings and the worm gear assembly and replace if necessary.
Explosion Protection Sticker
User Instructions
MAN-02-04-60-0351-EN Rev. 3
Maintenance