Samson 41-23 - Service Work Procedures; Replacing the Actuator; Replacing Set Point Springs

9-4 EB 2512 EN
Servicing
9.1 Preparing the valve for
servicework
1. Lay out the necessary material and tools
to have them ready for the service work.
2. Put the regulator out of operation (see
the 'Decommissioning' section).
We recommend removing the regulator from
the pipeline before performing any service
work (see the 'Removing the valve from the
pipeline' section).
The following service work can be per-
formed after preparation is completed:
− Replacing the actuator (see sec-
tion9.3.1)
− Replacing the set point springs (see sec-
tion9.3.2)
− Replacing the seat and plug (see sec-
tion9.3.3)
− Replacing the operating diaphragm (see
section9.3.4)
9.2 Installing the regulator
afterservicework
Î Put the regulator back into operation (see
the 'Start-up' section). Make sure re-
quirements and conditions for start-up
are met.
Tip
9.3 Servicework
Î Beforeperforminganyservicework,
preparations must be made to the regu-
lator(seesection9.1).
Î After all service work is completed, check
the regulator before start-up (see 'Testing
the regulator' in the 'Installation' section).