Drawing 10148 REV 0 24-11-15
Electric Agitator Instructions
5.5 NOTES FOR SAFETY Each operation of handling, installation, start-up and maintenance must
be carried out, complying with the accident prevention laws in force and using every practical
expedient for the purpose of safety of the work expressly mentioned in this text or in the enclosed
documents of the subordinate suppliers, as well as effecting all the procedures of sound execution
of the work, commonly well-known by the qualified operators.
6 INSTALLATION AND START-UP
6.1 INSTALLATION
- Check the space available for the assembly
- Check that the supporting structure (beams, plates, flanges, etc.) has been correctly
sized, taking the static and dynamic loads produced by the agitator into consideration.
- The anchor bolts must be suitable for the fastening holes (do not use undersized screws)
and must be assembled with plain washer and spring washer.
- Check the presence of baffles, when requested, in the cylindrical tanks.
- Check the possibility of inserting the impellers; disassemble and connect to the shaft
in the vessel through the pre-arranged openings without forcing.
- In case of installation in the open, it is necessary that at least the electric motor be
protected by a canopy.
- The motor-gearbox-bearing housing unit normally constitutes a single unit that is to be
fastened to the support structure, observing the torque wrench settings and attending to the
level in such a way as to guarantee a correct rotation of the shaft, free from oscillations
that before long could damage the mechanical stability.
- Make sure that the impellers are assembled in accordance with the rotation direction and
are fastened rigidly to the shaft. In case of two or more impellers carried out in various
flanged parts, follow the connection of the part’s pre-marked in the factory and tighten the
connection bolts in accordance with the torque wrench
- Finally, see to the assembly of all the possible additional elements supplied separately
such as:
- Bushing for steady bearing
- Nut covers for covered shaft/impeller flanges
-Pressure gauge for pressurization tank-Motor protection canopy
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