Flowserve T-series Thrust Bearing Pot - Manual (Page 18)

USER INSTRUCTIONS T-SERIES THRUST BEARING POT ENGLISH 26999907 01-2013
Page 18 of 24 flowserve.com
7 FAULTS; CAUSES AND REMEDIES
FAULT SYMPTOM
B e a r i n g s o v e r h e a t in g
⇓ ⇓ ⇓ ⇓
B e a r i n g s h a v e s h o r t l if e o r a r e d a m a g e d
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
⇓ ⇓ ⇓ ⇓
POSSIBLE CAUSES POSSIBLE REMEDIES
A. SYSTEM TROUBLES
Incorrect oil level
Check and correct level after renewing
damaged bearings
Worn bearings Replace bearings.
Water or foreign materials entering oil
Conduct oil analysis and CONSULT
FLOWSERVE, if necessary
Shaft running off center because of
worn bearings or misalignment.
Check misalignment and correct if
necessary. If alignment satisfactory
check bearings for excessive wear
Misalignment due to pipe strain
Check the flange connection and
eliminate strains using method
permitted
Oil film too thin or too thick
Check correct oil viscosity used for the
temperature
Rotating part rubbing on stationary part
internally Check and CONSULT FLOWSERVE, if
necessary
Impeller out of balance resulting in
vibration and or creating excessive
loading to the thrust bearing
Check and CONSULT FLOWSERVE