Mounting A Concave Diaphragm; Mounting A Convex Diaphragm - Gemü 611 Montageanleitung

correct position. The position of the grooved
pin A is offset by 90° to the position of C.
Place the compressor loosely on the bonnet
spindle, fit the wings D into the grooves C
and A into B. The compressor must be able
to be moved freely between the grooves!
11.3.2 Mounting a
concave diaphragm
Recess of compressor
Diaphragm boss
1. Move bonnet A to the closed position.
2. GEMÜ 671: Place the compressor
loosely on the bonnet spindle, fi t the
wings into the grooves and ensure that
the grooved pin (anti-twist system) is
engaged (see chapter 11.3.1 "General
information").
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 diffi 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 bonnet.
11.3.3 Mounting a
convex diaphragm
1. Move bonnet A to the closed position.
2. GEMÜ 671: Place the compressor
loosely on the bonnet spindle, fi t the
wings into the grooves and ensure that
the grooved pin (anti-twist system) is
611, 671
engaged (see chapter 11.3.1 "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.
I.
II.
Diaphragm face
Diaphragm pin
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 fi t closely in the recess of the
compressor.
Adapter
Com-
pressor
Backing
diaphragm
Diaphragm face
8. If it is diffi cult 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 bonnet.
10. Press the diaphragm face tightly onto
the backing diaphragm manually so that
it returns to its original shape and fi ts
closely on the backing diaphragm.
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Diaphragm pin
Recess of compressor
Diaphragm pin
Diaphragm boss