Goulds Pumps IC - IOM - Manual (Page 28)

When the
reading value
is...
Then...
Negative The pump coupling half (X) is lower than the driver coupling half (Y). Remove
shims of a thickness equal to half of the indicator reading value under each driver
foot.
Positive The pump coupling half (X) is higher than the driver coupling half. Add shims of
a thickness equal to half of the indicator reading value to each driver foot.
NOTICE:
You must use an equal amount of shims with each driver foot to prevent misalignment. Failure to do
so can result in equipment damage or decreased performance.
Y X
Shims
Figure 7: Side view of an incorrect vertical alignment
4. Repeat the previous steps until the permitted reading value is achieved.
NOTICE: The specified permitted reading values are valid only at operating temperature. For cold
settings, other values are permitted. You must use the correct tolerances. Failure to do so can result in
misalignment and reduced pump reliability.
Perform parallel alignment for a horizontal correction
A unit is in parallel alignment when the parallel indicator (P) does not vary by more than 0.002 in.
(0.05 mm) as measured at four points 90° apart at the operating temperature.
1. Set the parallel alignment indicator to zero on the left side of the driver coupling half (Y), 90° from
the top-center position (9 o’clock).
2. Rotate the indicator through the top-center position to the right side, 180° from the start position
(3 o’clock).
3. Record the indicator reading.
When the reading value is... Then...
Negative
The driver coupling half is to the left of the pump coupling half.
Positive The driver coupling half is to the right of the pump coupling half.
4. Slide the driver carefully in the appropriate direction.
NOTICE: Make sure to slide the driver evenly. Failure to do so can negatively affect horizontal
angular correction.
Y X
Figure 8: Top view of an incorrect horizontal alignment
5. Repeat the previous steps until the permitted reading value is achieved.
Installation
26 Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual