SPX FLOW Johnson pump - Common Pump Failures and Causes; Maintenance

KGE/EN (1711) 6.5 Trouble shooting 27
KGE
5 Trouble shooting
In case of abnormal operation or when troubles occur the pump must be taken out of
service immediately. Inform all responsible personnel. Prior to restarting the pump the
cause of the problem must be determined and the problem solved.
Table 3: Most frequently occurring failures.
Symptoms Causes
Failure to deliver liquid A,B,C,D,E,
Pump does not deliver rated capacity A,C,D,E,F,G,H,N,
Pump does not develop rated pressure A,E,H,K,M,S
Pumps overloads driver H,L,M,N,O,S,X
Vibration C,D,K,P,Q,R,S,T,U,V,X
Bearings wear rapidly Q,T,W,X,Y
Motor heating up H,O,Z
Seized pump B,F,S,X
Irregular delivery D,G,K,P
Pump does not prime A,B,E,G
Noisy pump C,D,G,H,P,Q,R,T,U,V,X,Y