Emerson Bettis RTS Service Manual page 9

Service Manual
VCIOM-16909-EN Rev. 0
Figure 1
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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. 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 3), 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 3).
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
Explosion Protection Sticker
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 3.3).
Change oil, and
Replace seals
.
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Section 2: Maintenance
October 2021
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