Maintenance
•
Inspect actuator paint work for damages to ensure continued corrosion protection.
Touch-up as required in accordance with the applicable paint specification.
•
Operate the Actuator/Valve assembly for 2 complete open/close cycles with com-
plete closing of the valve.
•
Verify the correct performing of open – close operations (e.g. check locally,
or automatically via Logic solver, the correct movement of the actuator).
All actuators are supplied with sufficient lubrication for their normal working life.
If required, see Section 9.1 (Grease instructions) for the recommended grease.
For mounting the parts of the repair kit follow the instruction of the Decommission,
Disassembly and Reassembly chapters of this manual.
6.2
Inspection and Repair
Replacement of internal seals and bearings allows to you extend the normal working
life. Service kits, containing all necessary spare parts (like seals, bearings, grease and
instructions) can be obtained through authorized Emerson – Actuation Technologies
distributors.
6.2.1
Service Kits
All soft seals, bearings, and nonreusable parts are included in the recommended service
kit. The service kit is identical for both the double-acting and the spring-return models.
6.2.2
Spring-Return Actuator
For the spring-return models, we recommend a set of spare springs for each different
model in addition to the recommended spare parts kit.
On spring-return actuators, the spring cartridges can be replaced.
SPRING CARTRIDGES
SHOULD ALWAYS BE REPLACED IN COMPLETE SETS
. Spring kits are available through
authorized Emerson – Actuation Technologies distributors.
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 7
September 2017
23
Section 6: Maintenance
