Decommissioning; Spare Parts - PYD Electrobombas SUB Serie Manual De Instalación Y Mantenimiento

INSTALLATION AND MAINTENANCE MANUAL
SUBMERSIBLE PUMPS
Disconnect the power supply before any maintenance operation and make sure that
the pump cannot be switched on accidentally.

7. DECOMMISSIONING

6.1. Check shaft rotation.
Refer to the cross section drawing on page 29. While the pump is placed horizontally, remove the
bolts (14.24), the square nuts (14.28) and the suction strainer (15.50). Hold the first stage housing
(25.01) firmly with one hand so that it does not rotate.
and, using a spanner on the nut (28.04), turn the shaft anticlockwise.
If the shaft is locked and cannot be released, disassembly must be continued until the cause has
been found and removed.
6.2. Inspection of hydraulic parts
The O-ring (14.20) and then the complete motor assembly with all internal pump parts are remo-
ved from the outer jacket (14.02).
The first impeller can be inspected by removing the first stage casing (25.01).
After the nuts (28.04) and washer (28.08) have been removed, the spacer sleeves (64.15), impe-
llers (28.00) and other stage casings (25.02 and 25.05) can be disassembled.
Other parts must not be disassembled. The functions of the motor and the pump can be affected
by an incorrect procedure or by tampering with internal parts.
6.3. Oil chamber
If the oil chamber has to be inspected, follow these instructions:
CAUTION: There may be slight pressure in the oil chamber. Care must be taken to avoid
a sudden spurt of oil. Wait until the oil chamber cover (34.03) has cooled down.
Before removing the mechanical seal (36.00), loosen the screws (70.18) and lift the cover (34.03),
applying force simultaneously at two opposite points on the flange of the cover, to release the
pressure in the oil chamber. Perform this operation while keeping the engine in the vertical up
position.
When refilling the chamber use only white oil suitable for food machinery and pharmaceutical use
(quantity = 35 g).
First fit the seal fixings (36.00) on the oil chamber cover (34.00) and then the oil chamber cover
(34.03) on the engine cover (70.00) with the O-ring (70.09).

8. SPARE PARTS

When ordering spare parts, please state their designation, the position number on the transverse
plane and the nominal data from the nameplate of the pump (type, date and serial number).
Any pump requiring inspection / repair must be sent back with cable and electrical control box.
www.proindecsa.com / [email protected]
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