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salmson LIFTSON L Instalacion Y Puesta En Servicio página 35

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8.2.2 Setting the pump run-time
• Set the pump run-time so that:
• If, after switching off the pump when only water has been pumped without slurping (audi-
• If the flap slams closed after switching off the pump combined with vibrations in the unit
• The slurping time should be 2 s, and the total pump run-time of one pump operation
8.3 Decommissioning
• Dismantling and installation by qualified personnel only.
• Disconnect the installation from the power supply and secure it against being switched
• Depressurise any pressurised parts before work.
• Close the gate valves (inlet and pressure pipe).
• Empty the collection reservoir (e.g. with diaphragm hand pump).
• To clean, unscrew and remove the maintenance cover.
Installation and operating instructions Liftson L
The pump run-time must be set in the switchgear on the rotary potentiometer (for setting
the run-on time).
DANGER! Risk of fatal injury!
When working on the open switchgear, there is a danger of electric shock from touch-
ing the live components.
Work must only be carried out by skilled personnel.
To set the potentiometer, switch the device so it is voltage-free and secure it against
being switched on again without authorisation.
• the amount of sewage in one pump operation is as great as possible (utilisation of the
maximum switching volume)
• loads on the unit and pipe are avoided
• noise development is at a minimum.
ble pumping of a water/air mixture), there is no or just a slight flap knock (closing noise of
the flap), the pump run-time should be set so that the pump switches off shortly before
slurping starts.
and pipework, this is to be stopped by adjusting the pump run-time. To do this, adjust the
potentiometer for the pump run-time until you can hear the slurping of the water/air mix-
ture at the end of the pump operation.
CAUTION! Risk of damage!
Fluid hammer (by the closing of the non-return valves) can destroy the unit and dis-
charge pipeline. They are to be avoided onsite by means of appropriate measures (e.g.
additional valve with counterweight, run-on time of the pumps).
should not exceed 18 s. Otherwise, the unit is working in an impermissible range (delivery
head too high, inlet too big).
The installation must be decommissioned before performing maintenance work or disas-
sembly.
WARNING! Risk of burns!
Depending on the operating status of the installation, the entire pump can become very
hot. Touching the pump can cause burns.
Allow the unit and pump to cool to room temperature.
Dismantling and installation
back on again.
DANGER! Risk of infection!
If the unit or unit components are to be sent in for repairs, a used unit must be drained
and cleaned before transport for hygiene reasons. Also, all parts which can be touched
must be disinfected (spray disinfection). The parts must be packed in tear-proof, suf-
ficiently large plastic bags so that they are tightly sealed and leak-proof. They are to be
sent in without delay via instructed forwarding agents.
For longer periods of non-use, check the unit for contaminants and clean if necessary.
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