Replace The Internal Parts Of The Pump - VUOTOTECNICA RVP 21 Betriebs- Und Wartungshandbuch

Replace the internal parts of the pump

The operations described below require the following spare part kits:
• Sealing kit;
• Vane kit;
After removing the pump from the body and from the oil tank as de-
scribed in the paragraph Replacing the pump, coupling or motor,
remove the key and the half coupling attached to the pump.
• Remove both the front and back closing flanges.
• Get rid of the two sealing rings and of the gasket for the connection
to the tank, that you will then replace.
• Extract the rotor from the stator and remove the worn vanes.
• From the front and back closing flanges, extract the sealing rings
and bearings.
• Check that the steel or spacer rings located on the rotor shaft are
not worn in correspondence with the work area of the bearings and that
there are no indentations in the sealing area of the gaskets.
In case of such damages, replace the rotor, because
the replacement of the rings is not recommended.
• Remove the cover containing the stainless steel mesh filter that
protects the check valve, as described in the paragraph Cleaning or
replacing the check valve.
• Carefully clean the disassembled parts with suitable solvents, dry
with compressed air and lubricate.
• Carefully check the conditions of all the components and in case of
evident signs of wear or indentation, replace the stator and the closure
flanges.
• Reassemble the pump reversing the sequence above.
Prematic AG, Märwilerstrasse 43, 9556 Affeltrangen www.prematic.ch
code: 000064AG
Tel. 071 918 60 60, Mail: v-g@prematic.ch
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