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MXV, MXV-B Rev4 - Operating Instructions
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.
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
MXV-B
MXV...
MXV...
25-32-40-50 25-32-40 50-65-80
impeller nuts (28.04)
8 Nm
8 Nm
35 Nm
nuts (61.04) on tie-bolts
50 Nm
50 Nm 50 Nm
screws (61.07) lantern upp. cov
-
-
60 Nm
screws (64.25) in the coupling
-
22 Nm 50 Nm
screws (70.18) with nuts (70.19)
-
40 Nm 40 Nm
When tightening the nuts (28.04), be careful not to
scratch the shaft with the second wrench used on the
opposite side.
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.
64.00
36.00
Parte
14.20
14.02
36.52
34.02
(*)
64.22
64.25
Fig.5 Montaggio tenuta meccanica
Fig. 6b
Rotore sollevato,
posizione di
bloccaggio
albero nel giunto
sollevamento albero
nel giunto. (*) Spina per
albero non bloccato
Rotore appoggiato
Fig. 6a
L1
L2
rotante
fissa
Parte
36.00
64.00
4.93.226/2
4.93.226/1
Fig. 6a
Fig. 6b
Rotor rested, with shaft not
Rotor raised, position for locking
locked in the coupling.
the shaft in the coupling.
(*) Pin for raising the shaft.
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
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
14.02 External jacket
14.04 Plug with washer
14.06 O-ring
14.12 Plug with washer
14.16 O-ring
14.17 Screw
14.18 O-ring
14.19 O-ring
14.20 O-ring
14.42 Plug with washer
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.
Summary of Contents for MXV-B, MXV, MXVL, MXVL4, MXV4
Page 107: ...RU MXV MXV B Rev4 C 107 136 13 OFF 1 2 a a 3 a a 2 a 4 a a 5 a a 4 6 a 5 6 6 6...
Page 131: ...MXV MXV B Rev4 131 136 New Old 2 4 1 3 5 6 MXV L 100...
Page 132: ...132 136 MXV MXV B Rev4 M12 50 Nm Old New M8 20 Nm 8 10 12 7 9 11 MXV L 100...
Page 133: ...MXV MXV B Rev4 133 136 M4 5 Nm 13 14 MXV L 100...
Page 134: ...134 136 MXV MXV B Rev4...