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Service Instructions
124843E Rev. C
August 2015
41
Section 8: Removal and Decommissioning
Removal and Decommissioning
Section 8: Removal and Decommissioning
8�1
Removal and Decommissioning
WARNING: FOLLOW PROPER PROCEDURE
Always follow safe work practices remove and disassemble G-Series actuator.
The below basic procedure should not supersede or replace any customer's plant safety
or work procedures. If a conflict arises between this procedure and the customer's pro-
cedures, the differences should be resolved in writing between an authorized customer’s
representative and an authorized Emerson/Bettis representative.
CAUTION: ISOLATE AND POWER OFF ACTUATOR
Make sure actuator is isolated before removing from valve. Turn OFF the power medium
and bleed off all pressure first, including storage tank (if present). Next, bleed off pilot
pressure, disconnect: pneumatic pressure supply, pilot tubing and electrical wiring (if
equipped).
Before starting the disassembly, a large area should be created around the actuator so
to allow any kind of movement.
Separate the parts composing the actuator according to their nature (ex. metallic, and
plastic materials, fluids etc.) and send them to differentiated waste collection sites, as
provided for by the laws and provisions in force.
8.1.1
Drain tanks and remove tubing from actuator. Remove accessories (if equipped)
and controls from actuator.
8.1.2
Remove all equipment mounted on top of actuator (limit switches, end of
stroke valve, and relevant pneumatic/electric connection, etc.)
8.1.3
Remove mounting bolts and actuator is ready to be removed from valve.
For complete actuator tear down refer to Section 2 of the manual.