13.3.2 Mounting A Concave Diaphragm; 13.3.3 Mounting A Convex Diaphragm - Gemü R693 Original Einbau- Und Montageanleitung

13.3.2 Mounting a concave diaphragm

Recess of compressor
Diaphragm boss
1. Move actuator A to the closed position.
2. Place the compressor loosely on the
actuator spindle, fit the recesses into
the guides (see chapter 13.3.1 "General
information").
3. Check if the compressor fits closely in the
guides.
4. Screw new diaphragm tightly into the
compressor manually.
5. Check if the diaphragm boss fits closely in
the recess of the compressor.
6. If it is difficult 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.

13.3.3 Mounting a convex diaphragm

1. Move actuator A to the closed position.
2. Place the compressor loosely on the
actuator spindle, fit the recesses into
the guides (see chapter 13.3.1 "General
information").
3. Check if the compressor fits closely in the
guides.
4. Invert the new diaphragm face manually; use
a clean, padded mat with bigger nominal
sizes.
I.
Diaphragm
pin
II.
Diaphragm face
III.
5. Position the new backing diaphragm onto
the compressor.
6. Position the diaphragm face onto the
backing diaphragm.
7. Screw diaphragm face tightly into the
compressor manually. The diaphragm
boss must fit closely in the recess of the
compressor.
Adapter
Com-
pressor
Backing
diaphragm
Diaphragm face
8. If it is difficult to screw it in, check the thread,
replace damaged parts.
9. 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.
10. Press the diaphragm face tightly onto the
backing diaphragm manually so that
it returns to its original shape and fits
closely on the backing diaphragm.
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Diaphragm pin
Recess of compressor
Diaphragm pin
Diaphragm boss
R693