0
11.3 Replacing the diaphragm
CAUTION!
Chemicals may spray out this may lead to caustic or other burns. The dosing pump head
must always be depressurized and rinsed with water or another suitable medium before
starting any work on the dosing pump.
CAUTION!
Legend
1. Dosing head
. Diaphragm
. Supporting plate
(with the MIDIDOS E 4, 48
and 7)
4. Diaphragm chamber
6. Diaphragm insert
7. Motor
Changing the diaphragm
1. Remove the dosing head (1) with a sui-
table tool (Allen key SW 10 or. SW1 for
E10). picture 1
. The dosing pump is set whilst the motor
is running at zero-capacity, whereby the
diaphragm () is secured into its stop
position.
. Turn the pumps off.
4. Diaphragm (), take its edge and turn
it anti-clockwise. So that the support
plate () behind the diaphragm is also
moved. Picture .
IMPORTANT!
Der Stützpilz
c
muss vor Einbau einer neu-
en Membrane von Chemikalien gereinigt
werden, weil die Membrane sonst von der
Rückseite attackiert werden kann.
1
2
3
4
6
7
a
b
c
d
f
g
IMPORTANT!
1
2
3
4
6
7
Picture 1
1
2
3
4
6
7
Picture 2
