KNF NF 1.30, Инструкции по эксплуатации и монтажу

Страница: 17 / 22

Diaphragm Liquid Pump NF 1.30 For your notes
KNF Flodos AG BA_NF1.30_EN_04_067674.docx
Translation of original Operating and Installation Instructions
17
9. Troubleshooting

Disconnect the pump from the power supply before working on
the pump.
 Ensure that there is no power.
Pump does not transfer
Cause Remedy
Pump not connected to power
supply  Connect pump to power supply
Power supply is not switched on  Switch on power supply
Connections or hoses are
blocked

Check connections and hoses
 Remove blockage
External valve is closed or filter
is clogged  Check external valves and filters
Diaphragm, valve sockets or
seals are worn.  Replace diaphragm, valve socket and seals
(see Section 8.2.3).
 Replace pump
Tab. 10
Pump is not priming
Cause Remedy
Suction side of pump not con-
nected  Connect the suction side of the pump
Liquid in the container is too low  Fill container
Hose connections are not leak-
tight  Secure transition joints between hose and connections with
clamps or other clamping elements
Peripheral valve is closed or
filter is clogged  Open the peripheral valve
 Clean filter
Pump head is filled with gas.
The system is unable to handle
the pressure on the pressure
side  Reduce pressure at pressure side
Particles in the pump

Clean the pump head (see Chapter 8.2)
The pump parts are not re-
sistant to the medium to be
transferred  Replace the pump head with a compatible version
Incorrect interchange of pres-
sure and suction line connec-
tions  Remove pressure and suction lines and reconnect correctly
Tab. 11