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SPA Rev7 - Operating Instructions
Clean the filter inserted in the bathtub suction opening
at regular intervals.
The pump does not require servicing except for
disassembly for cleaning and removal of any
obstruction from inner parts and the draining hole
when, with use and in the course of time, performance
or self-draining capacity are found to be reduced.
Avoid cleaning an installed pump by hosing down
directly with jets of water without protection panels on
the bathtub.
Following a long idle period
, check that the shaft
turns by hand.
For this purpose use the screwdriver notch on the shaft
end ventilation side. Turn the shaft by hand only in the
direction indicated by the arrows on the pump casing.
Note that a slight degree of resistence to rotation is
normal; this is due to friction caused by the mechanical
seal.
The pump might be jammed by an obstruction, foreign
matter, sticking of mechanical seal surfaces or other
causes.
If the shaft cannot be freed by hand, the pump will
have to be dismantled and cleaned.
8.2. Dismantling the pump
OFF
For dismantling and re-assembly see construction in
the cross-section drawing (page 14).
Remove the motor assembly with the lantern bracket
(32.00) from the pump casing (14.00), after removing
the screws (14.24), the nuts (14.28) and the washers
(14.29), levering them out with two screwsdrivers in
diametrically opposed positions.
To remove the impeller (28.00) insert a large straight-
blade screwdriver in the slot on the shaft (78.00) at the
ventilation end. Grip the impeller with one hand and
unscrew it, turning the shaft counter-clockwise and
twisting with both hands (fig. 3a).
Fig. 3 Dismantling (a) and remounting (b) the impeller
If it is not possible to hold or move the shaft with the
screwdriver, remove the fan cover (90.00) and motor
fan (88.00) and unscrew the impeller by gripping the
shaft with a suitable wrench.
With the impeller the rotating part of the mechanical
seal (36.00) will remove.
8.3. Re-assembly
To replace the mechanical seal (36.00) fit the rotating
part over the impeller hub (28.00) and push the
spring right down as far as the front shoulder. In this
way, correct spring compression will be ensured in
subsequent assembly.
Lubricate the seal with water and align the impeller on
the motor shaft.
ATTENTION: with the three-phase models, to avoid
the unscrewing (and breaking) of the impeller should
the motor start rotating backwards, clean the threaded
shaft end and apply on the first half of the threaded part
Loctite 638 (to avoid unscrewing due to the resistant-
force of the water in the case of a backward rotation).
Grip the impeller with one hand and turn the shaft with
a screwdriver in the clockwise direction until tight.
With this operation the front surfaces of the mechanical
seal come into contact without rubbing against each
other during tightening.
Clean the O-ring (14.20) and seal surfaces with water.
When replacing the motor assembly with the impeller,
be careful to insert the locating lug inside the pump
casing (14.00) into the locating slot on the diffuser
cover (27.00).
9. DISPOSAL
OFF
European Directive
2012/19/EU (WEEE)
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
14.20 O-ring
14.24 Screw
14.28 Nut
14.29 Washer
27.00 Diffuser cover
27.04 Diffuser wall
27.08 O-ring
28.00 Impeller
36.00 Mechanical seal
70.00 Lantern bracket
73.00 Ball bearing
73.08 V-ring
76.00 Motor casing with winding
76.04 Cable gland
76.16 Support
76.54 Terminal board
78.00 Shaft with rotor packet
81.00 Ball bearing
81.04 V-ring
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
94.02 Capacitor gland
98.00 Terminal box cover
98.04 Screw
98.08 Gasket
Changes reserved.
SPA Rev7.indd 12
08/02/19 17:46
