Diaphragm pump PJ25481-950.50.18
Servicing
Translation of original Installation Instructions, english, KNF 125530-316634 06/18
21
8.3. Replacing diaphragm and reed valves
Pump disconnected from mains and de-energized
Pump is clean and free of hazardous materials.
Hoses removed from pump’s pneumatic inlet and outlet.
Spare part/tool
Spare parts set according to spare parts list, Chapter 10
Allen key 2-mm (hexagon)
Phillips screwdriver No. 2
Allen key 4-mm (hexagon)
Felt-tip pen
Tab. 11
Always replace diaphragm and valve plates together to main-
tain the pump performance.
WARNING
Dangerous substances in the pump can cause a
health hazard.
Depending on the substance transferred, caustic
burns or poisoning are possible.
Wear protective clothing if necessary, e.g. pro-
tective gloves.
Flush the pump before replacing the diaphragm
and valve plates (see Chapter 8.2.1).
CAUTION
Danger of burns from hot pump parts
The pump head or motor may be hot even after the
pump has been shut off.
Allow the pump to cool off after operation.
Requirements
Spare parts/tools
Information on procedure
