KNF N922SPE, Перевод оригинальных инструкций по эксплуатации и установке

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Troubleshooting Diaphragm pump N922S_E IP54
32 Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21
Flow rate, pressure or vacuum too low
The pump does not reach the performance stated in the technical data or data
sheet.
Cause Troubleshooting
Condensate has collected in the
pump head.
à
Separate the source of the condensate from the
pump.
à
Flush the pump with air at atmospheric pressure
for a few minutes (if necessary for safety reasons:
with an inert gas).
à
Install the pump at the highest location in the sys-
tem.
There is overpressure on the pres-
sure side and at the same time
vacuum or pressure above atmo-
spheric pressure on the suction
side. à
Change the pneumatic conditions.
Pneumatic lines or connection
parts have insufficient cross sec-
tion or are throttled.
à
Disconnect the pump from the system to deter-
mine the output values.
à
Eliminate any throttling (e.g., valve) if necessary.
à
Use lines or connection parts with a larger cross
section if necessary.
Leaks occur at pneumatic connec-
tions, lines or pump head.
à
Eliminate the leaks.
Pneumatic connections or lines are
completely or partially clogged.
à
Check the pneumatic connections and lines.
à
Remove any parts or particles that are causing
blockages.
Head parts are soiled.
à
Clean the head components.
Operating diaphragm broken
à
Shut down the pump immediately.
Diaphragm or reed valves are worn
or defective.
à
Change the diaphragm and valve springs (see
Chapter Changing diaphragm and reed valves).
Tab.14
Pump exhibiting changed running noises and vibrations.
Cause Troubleshooting
Pump bearing worn or defective.
à
Determine the cause.
à
Contact KNF Customer Service.
Drive worn or defective.
à
See operating instructions for the motor.
Tab.15
Fault cannot be rectified
If you are unable to identify any of the specified causes, send the pump to
KNF Customer Service (contact data: see www.knf.com).
1. Flush the pump with air for a few minutes (if necessary for safety rea-
sons: with inert gas) at atmospheric pressure to free the pump head of
dangerous or aggressive gases (see Chapter
9.2.1 Flushing the
pump ).
2. Clean the pump (see Chapter 9.2.2 Cleaning the pump ).
3. Send the pump together with completed Health and Safety Clearance
and Decontamination Form to KNF, stating the nature of the trans-
ferred medium.