Diaphragm liquid pump NF 100 Servicing
KNF Flodos BA_NF100_EN_10_067676.docx
Translation of original Operating and Installation Instructions 25
8. Servicing
8.1. Servicing schedule
Component Servicing interval
Pump - Regular inspection for external
damage or leaks
Pump head - Clean if the flow rate decreases, the
pump does not work or no vacuum
is created (Chapter 8.2)
Diaphragm, valve
plates and seals
- Change as soon as pumping capac-
ity decreases, preferably sooner
Tab. 17
8.2. Cleaning
WARNING
Health hazard due to dangerous
substances in the pump
Depending on the medium transferred, caustic burns
or poisoning are possible.
Wear protective clothing if necessary, e.g. pro-
tective gloves.
Flush the pump with a neutral liquid and pump
empty.
8.2.1. Flushing the pump
When transferring aggressive media, KNF recommends flush-
ing the pump with air (or an inert gas if necessary for safety
reasons) under atmospheric conditions for a few minutes be-
fore switching off in order to extend the service life of the dia-
phragm.
8.2.2. Preparations for disassembly
Flush the pump with a suitable neutralising liquid, and make
sure that no dangerous substances are left in the pump
Pump empty
Separate electrical connections
Disconnect hoses from pump head
Qty Tools for KP, KP.51, KT and TT versions
1 Torx 20 screwdriver
Qty Tools for FT version
1 Phillips screwdriver No. 2
Tab. 18
Information on procedure
Tools
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