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Version with manual adjuster
Disassembly
1. Put the regulator out of operation (see
section 9.1).
2. To completely relieve the tension from the
set point springs (8), turn the manual ad-
juster (19) counterclockwise () until you
hear it a clicking noise.
3. Remove the bolts (15).
4. Remove the bottom section of the body
(22), intermediate ring (7) and top dia-
phragm (6.3) together with diaphragm
plates and the actuator stem (6.4) from
the regulator.
5. Pull the valve spring (5), if installed, out
of the body.
If the bottom diaphragm (6.1) is damaged,
proceed as follows:
6. Unscrew the assembly, consisting of dia-
phragm (6.1) together the diaphragm
plates, set point spring (8) and support
(21), from the spindle (20) by turning the
assembly counterclockwise. Pull it out the
bottom section of the valve body.
7. Replace the diaphragm (6.1).
EB 3131 EN
Assembly
1. Push the assembly, consisting of the new
diaphragm (6.1) together the diaphragm
plates, set point spring (8) and support
(21), over the spindle (20) into the bot-
tom section (22) of the valve body.
2. Turn the assembly clockwise () by one
turn to screw it onto the spindle (20).
Lift the diaphragm plate to check whether
the thread of the spring plate (23) has
engaged. Turn the assembly one turn
further, if necessary.
3. Insert the valve spring (5), if installed, in-
to the body.
4. Mount the bottom section of the body
(22), intermediate ring (7) and top dia-
phragm (6.3) together with diaphragm
plates and the actuator stem (6.4).
5. Tighten screws (15). Observe the tighten-
ing torques specified in section 7.3.
6. Fasten the control lines (11, 12).
7. Install the regulator into the pipeline.
8. Fasten the external control lines (13, 14).
9. Put the regulator into operation (see sec-
tion 5.3).
Servicing
35
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