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1 The pump doesn’t start
1.1
Power failure.
1.2
Seized impeller.
1.1a
Check the electrical power circuit and supply
1.2a
Disassemble the pump body and check.
2 The pump works.
22.1
The impeller is damaged.
2.2
The manual delivery valve
is closed.
2.3
Clogged suction.
2.4
The transmission joint is
damaged.
5 Il motore scalda.
5.1
Il liquido è troppo denso.
5.2
Il collegamento elettrico è
errato.
5.3
La girante tocca sul corpo
o vi sono corpi estranei.
5.4
L’albero della pompa è
danneggiato.
5.5
Il cuscinetto è danneggia-
to.
4.3
The impeller touches the
pump body.
4.4
The bushing is worn out.
4.5
The bearings are worn
out.
4.6
Incorrect installation.
3 The pump does not deliver
as per performance curve
3.1
Fluid is too dense.
3.2
Clogged delivery pipe.
3.3
Clogged suction.
3.4
The impeller is damaged.
3.5
Damaged pump body.
3.6
Electrical motor is wrongly-
connected.
3.7
The electric motor is da-
maged.
3.8
The wearing bushing is
damaged.
2.1a
Disassemble the pump and check the impeller.
2.2a
Open the delivery valve and/or check the
delivery pipes.
2.3a
Check and clean.
2.4a
Disassemble the motor and check.
5.1a
Nessun rimedio.
5.2a
Verificare la tensione di alimentazione ed il collegamento
sul motore.
5.3a
Aprire la pompa e verificare.
5.4a
Aprire la pompa, smontare il motore e verificare l’albero
della pompa e la concentricità sulla rotazione.
5.5a
Verificare lo stato e/o sostituire il cuscinetto.
Clean the suction conduit and any dirt
Disassemble pump and motor and check the shaft and
4.3a
Open the pump and check.
4.4a
Open the pump, disassemble the wearing bushing and
check its condition.
4.5a
Open the pump, disassemble the motor and check the
play of the bearings.
4.6a
Check the installation again with greater care.
3.1a
No solution.
3.2a
Check and clean.
3.3a
Check and clean.
3.4a
Replace the impeller.
3.5a
Disassemble the pump body and check.
3.6a
Check the electrical connection and power tension.
3.7a
Replace the motor.
3.8a
Open the pump and check or replace the wearing bu-
shing.
GB
PROBLEM
POSSIBLE SOURCE
SUGGESTION