BADU Block Multi 100 Traduction Du Instruction D'utilisation Originale page 97

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Fault: Motor overload
Possible cause
Pump's back pressure is
less than that indicated in
the order.
Higher density of the
pumping liquid than that
indicated in the order.
Too high a speed.
Running on two phases.
Transport fuse not
removed from the shaft
groove.
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Fault: Too high a pump pressure
Possible cause
Too high a speed.
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Fault: Increased bearing temperature
Possible cause
Pump strained or
vibrations in the pipes.
Increased axial thrust –
(further enquiry
required).
Flow rate too low.
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04/2016
Solutions
 Set operating point exactly.
 For constant overload turn the
impeller - (further enquiry
required).
 Contact manufacturer.
 Reduce speed - (further enquiry
required).
 Renew faulty fuse.
Check electrical power

connections.
 Remove the transport fuse from
the shaft groove.
Solution
 Reduce speed - (further enquiry
required).
Solution
 Check pipe connections and
pump fasteners, if necessary
reduce the pipe bracket
spacing.
 Fasten pipes using vibration
reducing materials.
Clean relief bore in impeller.

 Increase minimum flow rate.
Faults
EN 35