Operating instructions B-Series
Version 2.4, En Page 61 of 81 21-10-2005
Malfunction Cause Possible solution
Pump becomes
warm and/or
seizes
Purge line is blocked Clean
Turning parts run against stationary parts Adjust and align as necessary
The bearings are worn Replace bearings
The shaft runs eccentrically with worn
bearings or poor alignment
Replace and align bearings
The turning parts are out of balance
(vibrating)
Find imbalance and remedy
Ineffective lubrication or insufficient
lubricant in the bearing housings,
possibly as a result of a leak; noticeable
at increased temperature
Follow service plan
Insufficient lubrication Follow service plan
The bearings are soiled Replace bearings, prevent dirt penetration
Rust formation in the bearings due to
penetrated moisture
Replace bearings, prevent pump coming
into contact and with moisture with large
temperature differences.
Malfunction Cause Possible solution
Drive unit is
overloaded
Wrong direction of rotation Change direction of rotation
The shafts are not precisely in line Align unit
Turning parts run against stationary parts Adjust and align as necessary
The bearings are worn Replace bearings
The shaft runs eccentrically with worn
bearings or poor alignment
Replace and align bearings
The turning parts are out of balance
(vibrating)
Find imbalance and remedy
Ineffective lubrication or insufficient
lubricant in the bearing housings,
possibly as a result of a leak; noticeable
at increased temperature
Follow service plan
Insufficient lubrication Follow service plan
The bearings are soiled Replace bearings, prevent dirt penetration
Rust formation in the bearings due to
penetrated moisture
Replace bearings, prevent pump coming
into contact and with moisture with large
temperature differences.
The number of revolutions is too high Reduce number of revolutions
There is a blockage in the suction line Clean
The liquid has a higher density than the
viscosity for which the pump is intended
Adapt temperature of liquid if possible.
Choose other pump
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