Speck pumpen IN Series, Оригинальное руководство по установке и эксплуатации

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Malfunction Possible cause Possible solution/ Other information
elimination
Pump running dry Replace shaft seal
Axial clearance set See Point 10
incorrectly Motor Assembly)
Leakage along the Worn O-ring Replace O-ring
pump casing
O-ring is not resistant Replace O-ring with
to the pumped medium one of a suitable
material
Pump installed under Depressurise pump
tension and lines. Support the
connections.
If necessary, fit
compensators
The pump vibrates Coupling is not Fit the coupling so that
and is noisy correctly fitted it is parallel
Pump not filled Fill and deaerate the
pump
No or insufficient Make sure the supply
intake is sufficient. Check if
the intake line is
blocked
Pump bearings and/or Replace bearings
motor bearings are
damaged
NPSH value too low Improve the suction
(cavitation) conditions
The pump is not Adapt the system for
working in its operating operation within the
range operating range or
select a suitable pump
Pump has internal Clean pump
deposits or blockages
The pump is standing Level the surface or
on an uneven surface connect the pump
securely with the
sub-surface
The pump does not No electricity at the Check the power - Electric circuit
start terminals supply - Main switch
- Fuses
Check the motor - Motor overload switch
overload switch - Earth leakage switch