M&C TechGroup MP47 Ex Operator's manual - Handbuch (Seite 51)

Diaphragm Pumps PJ19424-726 Troubleshooting
Translation of Original Operating- and Installation Instructions, english, KNF PJ19424-726 01/13 23
Fault cannot be rectified
If you are unable to determine any of the specified causes, send
the pump to KNF Customer Service (see Page 1 for the address).
1. Flush the pump to free the pump head of dangerous or ag-
gressive gases (see Section 8.2.1).
2. Remove the pump.
3. Clean the pump (see Section 8.2.2).
4. Send the pump to KNF with a filled out decontamination decla-
ration (Section 11) and specification of the medium transferred.