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Maintenance of the double diaphragm pump
Assembly the diaphragms in the
reverse sequence
After maintenance work
26
6.
If necessary remove any liquid which may remain in the
double diaphragm pump
ð Now the double diaphragm pump can be removed for
maintenance.
19.
18.
Fig. 6: Maintenance of the diaphragms
1.
Remove both tensioning straps (28)
2.
Screw out the outer diaphragm flange (27), diaphragms (26)
and inner diaphragm flange (25) together in an anti-clockwise
direction
3.
The inherent curvature of the diaphragms (26)
points outwards when fitting.
Place the outer diaphragm flange (27) on the outside of the
diaphragms. When doing so, ensure that the side of the inner
diaphragm flange (25) with the larger radius points towards
the diaphragms.
4.
Tighten the outer diaphragm flange to approx. 3 Nm. The dia‐
phragm must not turn freely with the diaphragm flange when
tightening.
1.
Attach the air supply line to the double diaphragm pump
2.
Open the compressed air supply
3.
Open the discharge line of the double diaphragm pump
4.
Open the suction line of the double diaphragm pump
ð Now the double diaphragm pump can pump again
Check all connectors for leak-tightness
28.
43. 29.
17. 25.
30.
26.
27.
A1139
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