8 Trouble-shooting
77 of 96
Sewatec
A B C D E F G H Possible cause Remedy
9)
- ✘ - - - - - - Density or viscosity of the fluid handled
is higher than stated in the purchase
order.
Contact KSB.
- ✘ ✘ - - - - - Speed is too high. Reduce speed, request particulars.
- - - - ✘ - - - Assembly bolts/sealing elements Re-tighten bolts.
Fit new sealing elements.
- - - - - ✘ - - Worn shaft seal Fit new shaft seal.
- - - - - - ✘ - Vibrations during pump operation Correct the suction conditions.
Re-align the pump.
Re-balance the impeller.
Increase pressure at the pump suction nozzle.
- - - ✘ - ✘ ✘ - The pump set is misaligned. Check the coupling/belt drive. Re-align, if
required.
- - - ✘ - - - - Non-compliance with specified
coupling distance
Correct the distance according to general
arrangement drawing.
- ✘ - - - - - - Operating voltage too low. Increase the voltage.
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