Servicing
Diaphragm Liquid Pump NF 1.30
KNF Flodos AG BA_NF1.30_EN_04_067674.docx
14
Translation of original Operating and Installation Instructions
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
sockets and sealing
washers
-
Change as soon as pumping capac-
ity decreases, preferably sooner
Tab. 8
8.2. Cleaning and dismantling
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
If transferring aggressive media, KNF recommends flushing
the pump with a neutral fluid under atmospheric conditions for
a few minutes before switching off, to extend the service life of
valves and diaphragm.
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
1
Torx 10 screwdriver
Tab. 9
Information on procedure
Tools
