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Electric connections must be carried out perfectly by competent personnel.
CAUTION !
Before any intervention of checking or maintenance, it's indispensable to disconnect electric
power supply.
CAUTION ! Given the different nature of conveyed liquids, before any intervention, be sure that
pump has been duly cleaned. Take all necessary measures of personal health: make use of
protective glasses, rubber gloves, mask and waterproof apron. Comply with local safety
regulations.
INSPECTION OF THE INSTALLATION
WARNINGS :
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1 Competent personnel must be vaccinated against diseases which could be contacted from eventual wound, contact or
inhalation.
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2 If necessary to come down the tank, make an efficacious ventilation ensuring the necessary presence of oxygen.
3 Newer work alone. Make use of helmet, belt and safety rope and gas mask, if necessary. Don't ignore drowning risk.
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4 Verify that there are not toxic gas.
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5 Before welding or using electric equipment, verify that there is no explosion risk in the area where you are operating.
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6 Verify eventual risks from electric faults.
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7 Check good conditions of lifting equipment.
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8 Make a suitable protective barrage of the working area.
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9 Be sure of a possible quick coming out from the working area.
- 10
Before testing the motor verify insulation and earthing efficiency of the same.
FUNCTIONING AND PRELIMINARY INSPECTIONS
The electric pump is supplied ready to use; in case of long storage make some simple inspections
before installing.
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1 Check oil level in the mechanical seal ousing support (see quantity indicated in the relevant
table).
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2 Check, before electric connection, that impeller is rotating free.
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3 Check that Voltage is complying with the value indicated in the motor plate.
- 4 Check that rotation direction of impeller is the same as indicated by the harrow placed on
the upper part the motor (clockwise from upper point of view, see side figure).
In case of wrong rotation invert rwo phases (see electric connection).
CAUTION !
Never slip hand or tools into pump suction after electric connection.
Before any inspection verify that electric power supply is disconnected.
CAUTION!
When checking rotation direction don't keep the pump by the handle in order to avoid
dangerous effects caused by the thrust reaction.
SAFETY MEASURES
15
ROTATION DIRECTION
REACTION THRUST
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