Maintenance - Emerson Bettis RPX Series Safety Manual

Section 3: Bettis RPX Actuators
October 2020
3.3
8

Maintenance

Before mounting or (dis) assembling the actuator consult the relevant
sections of the installation, operation and maintenance manual for
more detailed maintenance information.
WARNING
!
Avoid personnel injury or property damage from sudden release
of process pressure or uncontrolled movement of parts. Before
performing any maintenance operations:
• Always wear protective gloves, clothing, and eye wear.
• Disconnect any operating lines providing air pressure,
electric power, or a control signal to the actuator. Be sure
the actuator cannot suddenly open or close the valve.
• Do not remove the actuator from the valve while the valve is
still pressurized.
• Vent any pneumatic pressure from the actuator and relieve
any actuator spring pre-compression.
• Use lock-out procedures to be sure that the above measures
stay in effect while you work on the equipment.
• Never apply pressure to a partially assembled actuator
unless all pressure-retaining parts have been installed
properly.
• Check with your process or safety engineer for any
additional measures that must be taken to protect against
process media.
• Do not remove the Pistons from the Actuator Body by using
air pressure when the End Caps have been removed.
Safety Guide
DOC.SG.BRX.1 Rev. 1
Bettis RPX Actuators