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7.6
Recommended spare parts
Piece denomination
Joints (set)
Mechanical seal
Wear plate(if fitted)
Antifriction bearing (set)
Shaft seal ring (set)
Thrower
Shaft sleeve
Coupling bush (set)
Impeller nut
Circlip (set)
Parallel key (set)
Pump shaft(s) (set)
Impeller
Coupling
(1) Amounts recommended for a continuous service pump.
(*) Certain pump sizes won't carry this piece
7.7
Preventative maintenance
DESCRIPTION OF THE OPERATION TO
Nº
BE CARRIED OUT
1
Check for mechanical seal leaks
2
Check the support oil level
Check for leaks between the casing and the
3
cover
4
Check for leaks between flanges
5
Check for grease or oil leaks
6
Check for heating of the bearings
Check tightness of connecting bolts for
motor/base frame, pump/base frame,
7
cover/casing, support/support supplement,
flanges/casing
8
COMPLETE PUMP CHECK
9
Check for wear of the impeller and rings
10 Check for wear of the shaft and bearings
11 Change the rubber coupling bushes
12 Check functional characteristics loss
13 Refill the support oil or grease
14 Change the oil or grease of the bearings
15 Change the joints
16 Change the mechanical seal
17 Check and align the coupling
16
Recommended spare parts (1)
Reference Nº
Start-up
400/411/412
433
135
320/321
421
507 (*)
523 (*)
860
922
932
940
210
230
840
PROCEDURE
Visual inspection
Visual inspection
Visual inspection
Visual inspection
Visual inspection
With thermocouple
Manually
Checking and
dismounting the
pump. See point
7
of
the manual
Dismount casing,
visual inspection
Dismount support
visual inspection
See point
7.4.3
and
7.5.2
of the manual
Instrument reading
See point
7.2.2
of
the manual
See point
7.2.2
of
the manual
Manually
See point
7.4.4
and
7.5.3
of the manual
See point
5.2
of the
manual
2 years
5 years
1
2
5
1
2
3
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
REGULARITY
CONSEQUENCE
Weekly
Weekly
Monthly
Monthly
Monthly
3, 13, 14
Quarterly
2, 5, 12
Twice a year
1, 3, 4, 6, 7, 9, 10,
Yearly
12, 13, 14
Yearly
Yearly
Yearly
In accordance
Check the
with use
installation, 8
See point
7.2.2
of the manual
Oil see point
7.2.2. Grease
Twice a year
Every time they
are removed
When leaks are
detected
Twice a year and
every time they
are dismounted
AU
16
13, 14
15
15
17
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