GEM 658, Инструкция по установке, эксплуатации и обслуживанию, Страница: 34 / 44

Diaphragm size 25 - 50 ( DN 15 - 50 ) :
Compressor and actuator flange seen from
below:
Place the compressor loosely on the
actuator spindle, fit the recesses D into the
guides C . The compressor must be able to
be moved freely between the guides!
12.3.2 Mounting a
concave diaphragm
1. Move actuator A to the closed position.
2. Place the compressor loosely on the
actuator spindle, fi t the recesses D
into the guides C (see chapter 12.3.1
"General information").
Diaphragm size 10: ensure that the anti-
twist system is engaged.
3. Check if the compressor fi ts closely in
the guides.
4. Screw new diaphragm tightly into the
compressor manually.
5. Check if the diaphragm boss fi ts closely
in the recess of the compressor.
6. If it is di ffi cult to screw it in, check the
thread, replace damaged parts (only use
genuine parts from GEMÜ).
7. When clear resistance is felt turn back
the diaphragm anticlockwise until its bolt
holes are in correct alignment with the
bolt holes of the actuator.
12.3.3 Mounting a
convex diaphragm
1. Move actuator A to the closed position.
2. Diaphragm sizes 25 - 50: place the
compressor loosely on the actuator
spindle, fi t the recesses D into the
guides C (see chapter 12.3.1 "General
information").
3. Check if the compressor fi ts closely in
the guides.
4. Invert the new diaphragm face manually;
use a clean, padded mat with bigger
nominal sizes.
III.
I.
II.
Diaphragm face Diaphragm pin
5. Position the new backing diaphragm
onto the compressor.
6. Position the diaphragm face onto the
backing diaphragm.
Diaphragm boss
Recess of compressor
Diaphragm
pin
D
C
C
D
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