October 2015
Service Instructions
127072E Rev. C
39
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 while removing and disassembling the G-Series actuator.
The below basic procedure should not supersede or replace any customer’s plant safety
or work procedures. If a conict arises between this procedure and the customer's
procedures, 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 rst, including storage tank (if present). Next, bleed off pilot pressure
and disconnect: pneumatic pressure supply, pilot tubing and electrical wiring (if equipped).
Before starting the disassembly, a large area should be created around the actuator to
allow any kind of movement.
Separate the parts comprising the actuator according to their nature (e.g. metallic, plastic
materials, uids, 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 control from actuator.
8�1�2 Remove all equipment mounted on top of actuator (limit switches, end of stroke
valve, relevant pneumatic/electric connection, etc.).
8�1�3 Remove mounting bolts and check if actuator is ready to be removed from valve.
For complete actuator teardown refer to Section 2 of the manual.
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