Emerson Bettis RTS FQ Series Operating Manual page 73

User Instructions
MAN-02-04-60-0351-EN Rev. 3
Actuators are ready for use after installation. By default, the actuator is delivered filled with
oil. On-going monitoring:
•
•
Actuators are designed for installation in any position (see Section 3.4). Therefore, the
main body is not equipped with a level indication or a drain plug. The replacement of the
lubricant from the main body must be performed via the handwheel.
Every approx. 10,000 to 20,000 hours (about 5 years, see Section 15), depending on the
workload, you must:
•
•
Check all roller bearings and the worm-wheel assembly and replace if necessary.
Check our lubricants table for recommended oils and greases (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. If screws need to be replaced, it is preferable to use original replacement
parts. The tensile strength of the screws must be at least 400 N/mm
Maintenance
Beware of increased running noise. During long downtime periods, operate the
actuator at least every 3 months.
For actuators with output types A, B and C according to DIN 3210-A, B1, B2 and C
according to DIN ISO 5210, re-lubricate at least every 6 months on existing grease
fittings (see Section 15.3).
Change oil, and
Replace seals
Section 12: Maintenance
Febraury 2019
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