Mounting A Concave Diaphragm; Mounting A Convex Diaphragm - Gemü 675 Original Einbau- Und Montageanleitung

The compressor is fi xed to the spindle.
Compressor and bonnet fl ange seen from
below:
DN 15 - 80
DN 100 - 150
675
11.3.2 Mounting a
concave diaphragm
Recess of compressor
1. Move bonnet A to the closed position.
2. Screw new diaphragm tightly into the
compressor manually.
3. Check if the diaphragm boss fi ts closely
in the recess of the compressor.
4. If it is diffi cult to screw it in, check the
thread, replace damaged parts (only use
genuine parts from GEMÜ).
5. When clear resistance is felt turn back
the diaphragm anticlockwise until its bolt
holes are in correct alignment with the
bolt holes of the bonnet.
11.3.3 Mounting a
convex diaphragm
1. Move bonnet A to the closed position.
2. Invert the new diaphragm face manually;
use a clean, padded mat with bigger
nominal sizes.
I.
II.
Diaphragm face
III.
3. Position the new backing diaphragm
26 / 32
Diaphragm pin
Diaphragm boss
Diaphragm pin