8 Trouble-shooting
62 of 72
Sewatec (60 Hz)
A B
C D E F G H Possible cause
Remedy
9)
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- Density or viscosity of the fluid pumped
is higher than stated in the purchase
order.
Contact KSB.
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- Speed is too high.
Reduce speed, request particulars.
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- Tie bolts/sealing elements
Tighten the bolts.
Replace sealing elements.
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- Worn shaft seal
Fit new shaft seal.
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- Vibrations during pump operation
Correct suction conditions.
Re-align the pump.
Re-balance the impeller.
Increase pressure at the pump suction nozzle.
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- The pump set is misaligned.
Check the coupling/belt drive. Re-align if
required.
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- Non-compliance with specified
coupling distance
Correct distance according to the general
arrangement drawing.
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- Insufficient operating voltage
Increase the voltage.