Dangerous And/Or Toxic Liquid Dosage; Assembling And Dismantling The Pump - ETATRON D.S. BT MA/AD Notice D'installation, Emploi Et Entretien

Before performing any maintenance or cleaning operations on the dosing pump, proceed as follows:
1. Make sure the pump is electrically deactivated (both poles) by disconnecting the conductors from the
power supply using the omnipolar switch which must have a minimum distance of 3 mm between
its contacts (Fig. 4).
2. Relieve all the pressure in the pump body and the outlet piping in the most adequate way possible (be very
careful during this operation).
3. Drain the liquid present in the pump body by disassembling and reassembling the pump body using
the four fixing screws (Fig. 10).
If any liquid losses are present in the hydraulic system (due to O-ring seals, valves or piping breakages), stop the
pump by releasing pressure in the outlet piping and then proceed with maintenance operations
using adequate safety measures (gloves, goggles, overalls, etc.).
1.5 – DANGEROUS AND/OR TOXIC LIQUID DOSAGE
To avoid damage to persons and property due to contact with dangerous liquids or by the inhalation of toxic
vapours, always adhere to the instructions contained in this booklet and keep in mind the following regulations:
• Perform operations according to the instructions of the liquid manufacturer.
• Check the hydraulic parts of the pump for damage and breakages and only use the pump if it is in perfect
working order.
• Use small piping fit for the liquid being used and for the plant operating conditions, if necessary, insert the piping
inside PVC protection conduit.
• Before deactivating the dosing pump, neutralize the hydraulic part using an appropriate reagent.
1.6 – ASSEMBLING AND DISMANTLING THE PUMP
1.6.1 - ASSEMBLY
All the pumps we produce are normally supplied fully assembled. For better clarification, consult the appendix at
the end of this manual where exploded assembly drawings and views of the pumps are available together
with all components and their nomenclature, for the user to have complete details of the pump components.
These drawings are indispensable when searching for malfunctioning or defective parts. Other drawings
refer to hydraulic parts (pump header and valves) and are shown for the same reasons in the appendix at the end of
the booklet.
1.6.2 - DISMANTLEMENT
To dismantle the pump or before performing pump maintenance, proceed as follows:
1. Make sure the pump is electrically deactivated (both poles) by disconnecting the conductors from the power
supply using the omnipolar switch which must have a minimum distance of 3 mm between its contacts
(Fig. 4).
2. Relieve the pressure in the pump body and the outlet piping in the most adequate way possible (be very careful
during this operation).
3. Drain the liquid present in the pump body by disassembling and reassembling the pump body using the four
fixing screws, tightening torque 180÷200 Nxcm (Fig. 10).
Please pay particular attention to this last point and we recommend the user to consult the enclosed drawings
and chapter 1.4 "RISKS" before starting any operations.
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