Flowserve LNGT Manuel d'utilisateur Page 39

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LNGT USER INSTRUCTIONS ENGLISH 00083107 02-08
Page 39 of 48
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FAULT SYMPTOM
Pump overheats and seizes
Bearings have short life
Pump vibrates or is noisy
Mechanical seal has short life
Mechanical seal leaks excessively
Pump requires excessive power
Pump loses prime after starting
Insufficient pressure developed
Insufficient capacity delivered
Pump does not deliver liquid
PROBABLE CAUSES POSSIBLE REMEDIES
z
z
Motor running on 2 phases only. Check supply and fuses.
z z
z
Motor running too slow. Check motor terminal box connections and voltage.
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