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ENGLISH
30
9.3.11.2
LOWER BEARING EXCEPT SILICON CARBIDE
ONES
-
Press the bushing [3313] into the back cover.
Use a bronze drift (OD drift > OD bushing) and check the flange
contact surface is correct.
-
Push the back cover [1221] on the column flange [1340A].
-
Fasten back cover and column with screws [6577D].
9.3.12
ASSEMBLY OF HYDRAULIC
KEYED IMPELLERS :
-
Press the impeller key [6710] in the shaft [2100].
Danger from squeeze points. Handle impeller with care.
-
Slide the impeller [2200] onto the shaft [2100].
-
Add the washer/lock washer [2905].
-
Tighten the nuts [2912]
THREADED IMPELLERS :
-
Screw the impeller on the shaft and tighten it.
Danger from squeeze points. Depending on casing size it may be
necessary to use slings to lift the casing.
-
Put a new gasket [4596] in pump casing.
-
Align the discharge flange with the discharge pipe.
-
Fasten the casing [1111] with the screws [6577E].
9.3.13
ASSEMBLY OF DISCHARG E PIPE
-
Install a new gasket [4590A] between discharge pipe [9200] and
casing.
-
Tighten bolts [6581].
9.4
MOTOR
In order to ensure an optimum lifetime of the integrated motor a
minimum maintenance is necessary : clean cooling fins regularly, check
coupling alignment (if any), check cable gland tightening, …
Ball bearing lifetime depends on axial and radial forces applied on motor
shaft therefore on the pump design (close-coupled pump, pump sets
with elastic coupling, …).
Motor can be fitted with lifetime lubricated ball bearings (identified ZZ
or 2Z) or greased. Greasing nipples are located at the ball bearings and
re-greasing quantities are indicated on motor nameplate.
See motor instructions manual to find data about maintenance work to
be performed.
9.5
TIGHTENING TORQUES
Tightening torques depend on the material used in the assembly and on
the type of lubricant that is used.
Refer to applicable regulation to know the tightening torques for
the fastening of cast iron or stainless steel made flanges. The values
given below should be only indicative. If real tightening torques are
required please ask our technical services.
Содержание Norma V Series
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Страница 85: ...17 7 3 3 U 3 7 3 4 7 4 850 dU dt 2500 ATEX NPSHR NPSHA 40 55 8 8 1 2 1 ATEX...
Страница 86: ...18 8 2 8 3 20 30 8 4 mwc HMTmwc Pbar x 100 d x 9 806 d CS ATEX 1 8 5 WILO 9 9 1...
Страница 89: ...21 V18 TM TM 2 90 9 3 2 9 3 2 1 9 3 2 2 9 3 2 3 9 3 2 4 TM TH 9 3 2 5 6581 9200 4590A...
Страница 90: ...22 9 3 2 6 6577E 4596 6531 9 3 2 7 4610 1 2912 2905 2 9 3 3 2400 9 3 3 1 6577D 1221 1221 3400 3400...
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Страница 101: ...33 10 SRV NPSH NPSH NPSH NPSH NPSH...
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