Diaphragm
–Liquid pump NF 10
Servicing
KNF Flodos AG BA_NF10_EN_05_069219
Operating and Installation Manual
18
8. Servicing
8.1. Servicing schedule
Component
Servicing interval
Pump
-
Regular inspection for external
damage or leaks
Pump head
-
Clean the pump internally: if the
flow rate changes, the pump does
not pump or no vacuum is created
(section 8.2)
Diaphragm and valves
-
At the latest change when the flow
drops off
Tab. 14
8.2. Cleaning
WARNUNG
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
burns or poisoning are possible
Wear protective clothing if necessary, e.g. pro-
tective gloves.
Rinse the pump with a neutral liquid and pump
empty.
8.2.1. Flushing the pump
When pumping 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. Cleaning the pump
Wipe the outside of the pump with a soft dry cloth. Ensure that
any cleaning solvents used will not damage the materials of
the pump head and crankcase housing (check material
resistance properties).
If there is compressed air available, blow off the separate
parts.
▪
Pump must be switched off and mains plug removed from
the socket.
▪
The pump must be free of any hazardous substances.
▪
Hoses must be disconnected from the pump head.
▪
It is recommended to replace the diaphragm when the
head parts are removed.
Qty.
Tool
1
Screwdriver TORX T6
Tab. 15
Information on procedure
Prior requirements
Tools
