Samson 41-73 Series, Mounting And Operating Instructions

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EB 2517 EN 9-7
Servicing
Change the nameplate and material number
after changing the set point range.
9.3.3 Replacing the seat and
plug
To replace seat and plug, contact
SAMSON's After-sales Service.
Further information is available in Annex
('After-sales service').
9.3.4 Replacing the operating
diaphragm
Do not exchange the operating diaphragm
in an FDA-compliant regulator version.
SAMSON's After-sales Service can support
you to perform such service work.
There are no spare parts available for the
bellows actuators. The entire actuator must
be replaced when it is defective.
Note
NOTICE
!
Note
The associated order number is written on
the actual operating diaphragm.
Î
See Fig. 9-1
Removing the operating diaphragm
1. Put the regulator out of operation (see
the 'Decommissioning' section).
2. Completely relieve the tension from the
set point springs (7) by turning the set
point adjuster (6) counterclockwise (

).
Stored energy in the set point springs can
cause components to move in an uncon-
trolled manner resulting in injury to hands or
fingers.
3. Unscrew the control line (17).
4. Unscrew the nuts (9) and remove the ac-
tuator.
5. Clamp the actuator stem (11) into a suit-
able fixture. Mark the side of the actua -
tor to avoid reassembling it the wrong
way.
6. Unscrew nuts and bolts (15) from the ac-
tuator. Remove the actuator case with
control line connection (16).
7. Unscrew the diaphragm plate nut (14)
and remove the operating diaphragm
(12) from the diaphragm plate (13).
Tip
WARNING ! WARNING !