Diaphragm liquid pump NF 1.25
Servicing
KNF Flodos AG
BA_NF1.25_EN_03_163242
Translation of Original Operating and Installation Instructions, English
16
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, anchor
valves and seals
-
Change as soon as pumping capac-
ity decreases, preferably sooner
Tab. 10
8.2. Cleaning
WARNING
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.
➔
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. Cleaning the pump
➔
Where possible, wipe the components with a dry cloth. Do not
use cleaning solvents as these may corrode plastic parts.
➔
If there is compressed air available, blow off components.
▪
Pump or drive disconnected from the mains and de-
energized.
▪
The pump must be free of any hazardous substances
▪
Hoses must be disconnected from the pump head
▪
We recommend replacing the diaphragm when the head
parts are removed.
Qty.
Tool
1
T6 Torx screwdriver
Tab. 11
Information on procedure
Prior requirements
Tool
