KNF FL 10, Руководство по установке

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Maintenance Installation Instructions FL 10
KNF Flodos 173856_MA_FL10_EN_01.docx1
10
5 Maintenance
This product contains no parts that can be replaced and it cannot
be maintained.
6 Rectifying transfer problems
Symptom Cause Remedy
Pump does not work,
no movement or
sounds detectable No or incorrect control Check that voltage and signal form comply
with the specification
Pump does not work,
drive is very hot The coil is controlled with
DC voltage or another,
incorrect signal form Check that voltage and signal form comply
with the specification
The pump does not
suck or vacuum is
insufficient External valve is closed Check external valve
Counter pressure on
pressure side is too high Change the pressure conditions on the
pressure side
Particles in the pump head Rinse the pump head
Use a preventive preliminary filter
Pump does not trans-
fer External valve is closed or
filter is clogged or too
small Check external valves and filter
Connections or hoses are
blocked Check connections and hoses
Remove blockage.
Flow rate is insuffi-
cient or unstable Incorrect control Check that voltage and signal form comply
with the specification
Cross-section of hydraulic
hoses or connectors too
narrow or restricted Disconnect the pump from the system and
determine output values
Remove restriction (e.g. valve) if neces-
sary.
If applicable, use larger-diameter hoses or
connectors
Higher counter pressure in
the system than assumed
for the design Contact KNF representative
Particles in the pump head Rinse the pump head
Use a preventive preliminary filter
Pump has reached the
end of its service life Replace the pump
Leak of pump head
Diaphragm or oscillating
diaphragm defective
Replace the pump
If the malfunction cannot be rectified, contact your local KNF
representative (
www.knf.com )