Section 12: Maintenance - Emerson Bettis RTS FQ Series Operating Manual

User Instructions
MAN-02-04-60-0351-EN Rev. 3
Section 12:
All maintenance work may only be performed with the actuator disconnected from the
power supply.
Due to this requirement, the actuator has to be in the fail-safe position!
If this is not the case, it may be because of a fault in the fitting (stuck fitting shaft).
CAUTION
The actuator has a pre-stressed disk spring assembly! When undoing the flange mounting
bolts, the spring force against the fitting can cause the actuator to turn abruptly or come
loose from the fitting. Adequate safety measures must be taken.
Any powering up must be ruled out during maintenance!
Work on the electrical systems or components may only be carried out by electricians or
by individuals who have been instructed how to do so, working under the guidance and
supervision of an electrician in accordance with electro technical regulations.
After completing their commissioning, the actuators are ready for use.
The actuator is filled with oil as standard when shipped.
Routine Checks:
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CAUTION
The actuator has a pre-stressed disk spring assembly. Improper dismounting may lead to
both damage to the actuator as well as serious injuries! If maintenance work is needed
requiring the actuator to be dismounted, contact Emerson regarding detailed instructions
and/or any special-purpose tools for relaxing the spring assembly! Maintenance work on
open actuators may only be conducted if these are deenergized. Reconnection during
maintenance is strictly prohibited. Work on the electrical system or equipment must be
carried out only in accordance with electrical regulations by a qualified electrician himself
or by specially instructed personnel under the control and supervision of a qualified
electrician.
For explosion-proof actuators, it is necessary before opening the cover to wait a certain
time after switching off, see explosion protection sticker (Figure 66). Following times are
specified for the actuators.
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Bluetooth Connection
Maintenance
Be mindful of increased running noises. In cases of long down times, operate the
actuator at least every three months.
Check the fail-safe function (check the operating time and smoothness of running
in fail-safe operation). Lengthening in the running time may also be caused by an
increased torque requirement for the fitting after long down times.
CM03: 5 min
CM06: 10 min
Section 11: Bluetooth Connection
Febraury 2019
66