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Maintenance of the double diaphragm pump
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious inju‐
ries.
Please ensure when handling hazardous sub‐
stances that you have read the latest safety data
sheets provided by the manufacture of the haz‐
ardous substance. The actions required are
described in the safety data sheet. Check the
safety data sheet regularly and replace, if neces‐
sary, as the hazard potential of a substance can be
re-evaluated at any time based on new findings.
The system operator is responsible for ensuring
that these safety data sheets are available and that
they are kept up to date, as well as for producing
an associated hazard assessment for the worksta‐
tions affected.
1.
First disconnect the compressed air supply before under‐
taking maintenance work on the air valve.
2.
Bleed the pump.
3.
Disconnect the air supply line from the pump.
4.
Close the liquid valves.
5.
Drain the liquid from the pump. Collect the liquid and dispose
of it in line with the provisions of the material safety data
sheet.
6.
Remove the 4 screws and remove the cover (1).
7.
Remove the 4 screws and remove the directional valve (2).
Make sure that the directional valve is not damaged.
Replace the O-rings (3 and 7).
8.
Remove the 8 screws (5) of the diaphragm cover.
9.
Remove the cover (4) by carefully removing it.
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