Remounting; Disposal; Spare Parts; Esignation Of Parts - Calpeda MXV-B Instructions Pour L'utilisation

4806 units, there is also an intermediate bearing (see
section 15.).
If they are to be dismantled, first number the position of
each stage casing and the single spacer sleeves (see
lengths and positions of sleeves in section 15.) so as
to be able to remount the components correctly.
GB

9. REMOUNTING

To remount the components follow the dismantling
procedure in inverse order (see section 8.3.).
Check the state of the o-rings (14.20) and replace
them of they are damaged.
Make sure that the o-rings (14.20) are correctly
inserted on their seats on the pump casing (14.00) and
upper cover (34.02). Lubricate the seal rings with clean
water or any other compatible lubricant.
9.1. Tightening torque
Type
impeller nuts (28.04)
64.00
nuts (61.04) on tie-bolts
36.00
screws (61.07) lantern upp. cov
Parte
rotante
screws (64.25) in the coupling
screws (70.18) with nuts (70.19)
When tightening the nuts (28.04), be careful not to
scratch the shaft with the second wrench used on the
opposite side.
Fig.5 Montaggio tenuta meccanica
ATTENTION: the nuts (61.04) on the tie-bolts
(61.02), the screws (61.07) on the upper cover
and the screws (70.18) with the nuts (70.19) on
the lantern bracket must be uniformly tightened
with alternated crossover tightening procedure
in diametrically opposite positions.
(*)
Fig. 6a
Rotor rested, with shaft not
Fig. 6a
locked in the coupling.
Rotore appoggiato
(*) Pin for raising the shaft. albero non bloccato
nel giunto. (*) Spina per
sollevamento albero
9.2. Axial position of the pump rotor MXV(L),
MXV(L)4
In the vertical position and from the resting position
(fig.6a), raise the rotor, levering on a pin inserted in the
hole in the shaft, until the pin can be rested under the
coupling (64.22).
In this position (fig. 6b), by tightening the screws
(64.25) uniformly, the shaft (64.00) is locked tight in
the coupling.
Remove the pin.
Mount the motor as indicated in section 6.5..

10. DISPOSAL

OFF
Page 22 / 136
MXV-B MXV... MXV...
25-32-40-50 25-32-40 50-65-80
8 Nm 8 Nm 35 Nm
50 Nm 50 Nm 50 Nm
- - 60 Nm
- 22 Nm 50 Nm
- 40 Nm 40 Nm
4.93.226/1
4.93.226/2
64.22
64.25
64.00
Fig. 6b
Rotor raised, position for locking
Fig. 6b
the shaft in the coupling.
Rotore sollevato,
posizione di
bloccaggio
albero nel giunto
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.

11. SPARE PARTS

11.1. 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.

12. ESIGNATION OF PARTS

Nr. Designation
13.60 Flange with adapter
14.00 Pump casing
36.00
14.02 External jacket
Parte
14.04 Plug with washer
fissa
14.06 O-ring
14.12 Plug with washer
34.02
14.16 O-ring
14.17 Screw
14.20
14.18 O-ring
14.19 O-ring
36.52
14.20 O-ring
14.42 Plug with washer
14.02
14.54 Wear ring (1)
25.01 First stage casing
25.02 Stage casing
25.03 Stage casing with bearing
25.05 Last stage casing
28.00 Impeller
28.04 Impeller nut
28.08 Washer
32.00 Lantern bracket
32.30 Guard
32.31 Washer
32.32 Screw
34.01 Lower cover
34.02 Upper cover
36.00 Mechanical seal
36.51 Retaining ring, split
36.52 Shoulder ring
61.00 Base
61.02 Tie-bolt
61.03 Washer
61.04 Nut
61.07 Screw
61.30 Support foot
61.32 Screw
61.34 Washer
61.36 Nut
64.00 Shaft
64.10 Bearing sleeve
64.13 Upper spacer sleeve
64.14 Lower spacer sleeve
64.15 Spacer sleeve
64.18 bearing spacer sleeve (upper)
64.19 bearing spacer sleeve (lower)
64.22 Coupling
64.25 Screw
66.00 Ball bearing
66.18 Circlip
66.19 Shoulder ring (3)
70.18 Screw
70.19 Nut
99.00 Motor, complete
(1) Inserted in the stage casing (cannot be supplied separately)
(2) See section 15.
(3) Only for motor size 132
Changes reserved.
MXV, MXV-B Rev4 - Operating Instructions