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MXA MXP MGP Rev4 - Operating Instructions
Every maintenance operations, cleaning or
reparation executed with the electrical system
under voltage, it could cause serious injuries
to people.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid
a hazard.
In case of extraordinary maintenance, or maintenance
operations that require part-removing, the operator
must be a qualified technician able to read schemes
and drawings.
It is suggest to register all maintenance operation
executed.
i
During maintenance keep particular attention in
order to avoid the introduction of small external
parts, that could compromise the device safety.
It is forbidden to execute any operations with
the direct use of hands. Use water-resistant,
anti-cut gloves to disassemble and clean the
filter or in other particular cases.
i
During maintenance operations external
personnel is not allowed.
Maintenance operations that are not described in
this manual must be made only by special personnel
authorized by Calpeda S.p.A.
For further technical information regarding the use or
the maintenance of the device, contact Calpeda S.p.A.
8.1. Routine maintenance
OFF
Before every maintenance operations
disconnect the power supply and make sure
that the device could not accidentally operate.
In the case of water containing chloride
(chlorine, sea water), the risk of corrosion
increases in stagnant water condictions (also
with an increase in temperature and decrease
of pH value). In these cases, if the pump
remains inactive for long periods, it must be
emptied completely and, preferably, dried.
For good measure, as in the case of temporary
operation with dirty liquids, run the pump
briefly with clean water to remove deposits.
When the pump remains inactive it must be
emptied completely if there is a risk of freezing
(par. 13 fig. 5).
Before restarting the unit, check that the shaft is not
jammed and fill the pump casing completely with liquid.
8.2. Dismantling the system
Close the suction and delivery gate valves and drain
the pump casing before dismantling the pump.
8.3. Dismantling the pump
OFF
Close the suction and delivery gate valves and drain
the pump casing before dismantling the pump (par. 13
fig. 5).
For dismantling and re-assembly see construction
in the cross section drawing.
9. DISPOSAL
OFF
The final disposal of the device must be done by
specialized company.
Make sure the specialized company follows the
classification of the material parts for the separation.
Observe the local regulations and dispose the device
accordingly with the international rules for environment
protection.
10. SPARE PARTS
10.1.
Spare-parts request
When ordering spare parts, please quote their
designation, position number in the cross section
drawing and rated data from the pump name plate
(type, date and serial number).
The spare parts request shall be sent to CALPEDA
S.p.A. by phone, fax, e-mail.
11. ESIGNATION OF PARTS
Nr. Designation
14.00 Pump casing
14.04 Plug
14.06 O-ring
14.12 Plug
14.16 O-ring
14.20 O-ring
14.24 Screw
16.00 Suction casing
16.14 Plunger
16.15 Spring
16.16 O-ring
16.17 Valve
20.00 Delivery casing
22.12 O-ring
22.16 O-ring
25.01 First stage casing
25.02 Stage casing (complete)
25.05 Last stage casing
25.10 Washer for missing impeller
25.11 First stage spacer
28.00 Impeller
28.04 Impeller nut
28.08 Washer
34.00 Casing cover
36.00 Mechanical seal
36.51 Retaining ring, split
36.52 Shoulder ring
46.00 Deflector
64.15 Spacer sleeve
70.00 Lantern bracket
73.00 Ball bearing
76.00 Motor casing with winding
76.04 Cable gland
76.16 Support
76.20 Pin
76.54 Terminal box, set
78.00 Shaft with rotor packet
81.00 Ball bearing
82.00 Motor end shield
82.04 Compensating spring
88.00 Motor fan
90.00 Fan cover
90.04 Screw
92.00 Tie-bolt
94.00 Capacitor
98.00 Terminal box cover
98.08 Gasket
Changes reserved.
MXA MXP MGP Rev4.indd 12
13/07/17 17:03
