Saci pumps CF-2 MAGNUS Manuel D'installation Et D'entretien page 13

ENGLISH
Periodical checks.
In normal working, the electro-pump requires no maintenance. However, it is recommendable to carry out a periodical
check of the current absorbed by the pump, of the height of pressure discharge with the mouth closed and the maximum
flow, in order to locate problems or wear before it is too late. If possible, have a programmed maintenance plan to achieve
trouble-free operation with minimal cost and downtime and without long, expensive repairs.
The mechanical closure normally needs no checking. It is only necessary to make sure there are no leaks. If there are,
replace the mechanical closure as follows.
REPLACEMENT OF THE SEALED JOINT.
Preparation for removal.
1. Turn off the electricity supply and make sure that it can not be turned on accidentally.
2. Close the stop valves in the uptake and drive.
3. Empty the pump body by means of the filling stoppers.
Replacing the mechanical closure
Release the bolts holding the pump body to the pump-motor support to be able to remove the body of the pump from the
motor unit. Preventing the shaft from turning, or handling this or the ring, unscrew the ring nut. Remove the flat and the
elastic washer (if necessary). Remove the ring nut, if necessary using two screwdrivers to press down on the lid of the
support, then remove the pin. Recover the spacer/s (depending on the model) and remove the rotating part of the
mechanical seal. To make extraction easier, use two screwdrivers to carefully press down on the seal spring, taking care
not to damage the seat. NB: lubricate with alcohol to make it easier to remove it by the shaft. Before refitting, make sure
that the seat of the mechanical seal is not scratched, and if it is, clean with emery paper. If this is not enough, it will be
necessary to replace the fixed part of the seal. Refit in reverse order to that indicated, taking special care to eliminate all
waste that lies in the seats of each part and then apply suitable lubricants.
All o-rings must be in a perfect condition, if not, they must be replaced.
If there is a risk of frost or when the pump is to remain inactive for a long time, we must empty the pump by means of the
filling stoppers on the base of the body.
Apart from this, our pumps require no further maintenance operation as the rollers are sized and lubricated for life.
FINAL NOTE
BOMBAS SACI S.A. will not respond for the wrong working of the pumps/electro-pumps or for any damage caused
by undue handling or modifications and/or if they are used in inadvisable sectors or fail to comply with the other
dispositions mentioned herein.
Nor will they be held responsible for any imprecision in this manual due to errors in printing or transcription. All rights
are reserved to introduce any alteration in the apparatuses that they might deem necessary or useful and which do not
jeopardise the essential characteristics.
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