KSB Omega, Installation & Operating Manual

Page: 71 / 94

A B C D E F G H I J K L M Possible causes
Remedy 22)
- - - - - - - - - -
✘
- - Worn shaft seal
▪
Check flushing liquid/barrier
fluid pressure.
▪
Clean barrier fluid line, supply
external barrier fluid, if
necessary, or increase barrier
fluid pressure.
▪
Fit new shaft seal.
▪
Replace worn components by
new ones.
▪
Replace shaft protecting
sleeve.
✘
- -
✘
- - -
✘
-
✘
- - - Unfavourable flow to pump
suction nozzle
▪
Alter piping layout.
▪
Alter suction/inlet line, if
piping losses are too high.
▪
Check whether pipe routing
results in swirling or irregular
flow (e.g. downstream of
elbow) and correct, if
necessary.
- - - - - - - -
✘
-
✘
- - Gland follower or seal cover
tightened incorrectly; wrong
packing material.
▪
Adjust.
▪
Replace.
▪
Correct.
▪
Replace gland packing.
▪
Replace worn components by
new ones.
- - - - - - - -
✘
-
✘
- - Lack of cooling liquid or dirty
cooling chamber
▪
Check flushing liquid/barrier
fluid pressure.
▪
Clean barrier fluid line, supply
external barrier fluid, if
necessary, or increase barrier
fluid pressure.
▪
Increase cooling liquid
quantity.
▪
Purify/clean cooling liquid.
- - - - - - -
✘
-
✘
- - - Pump is warped or sympathetic
vibrations in the piping.
▪
Re-align pump/drive.
▪
Check pipeline connections
and secure fixing of pump;
improve fixing of pipelines, if
necessary.
▪
Fix pipelines using anti-
vibration material.
- - - - - - - - -
✘
- - - Increased axial thrust
▪
Check duty point/pump
selection.
▪
Check operating mode.
▪
Check suction-side flow
conditions.
- - - - - - - - -
✘
- - - Insufficient or excessive quantity of
lubricant or unsuitable lubricant
▪
Clean the bearings.
▪
Top up, reduce or change
lubricant.
▪
Check oil lubrication system 23) .
▪
Check oil supply
23)
.
22) Pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure.
23)
If any
8 Trouble-shooting
Omega / Omega V
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