VLT
Vertical Process Pump
43 V1.090418
Figure 5.10. Plotting the motor in the across the disc pack alignment analysis example.
In this example, the motor should be shimmed up 0.013 inch (0.330 mm) under front feet and
shimmed up 0.016 inch (0.406 mm) under back feet.
This solution can also be done by use of a pre-programmed, calculator for faster results.
For the horizontal (side to side) results, the same procedure is used. Algebraically subtract the side to
side readings. Indicator sag can be ignored as it cancels out. Plot these readings and the results can
be read off the graph.
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