3.
Record the indicator reading.
When the read-
ing 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 (Y). Add shims of
a thickness equal to half of the indicator reading value to each driver foot.
Y X
Shims
Figure 26: 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 set-
tings, other values are permitted. The correct tolerances must be used. Failure to do so can
result in misalignment. Contact ITT for further information.
4.4.5.4 Perform parallel alignment for a horizontal correction
Refer to the alignment table in "Permitted indicator values for alignment checks" (see Table of Contents
for location of table) for the proper cold alignment value based on the motor temperature rise and the
pump operating temperature.
A unit is in parallel alignment when the parallel indicator (P) does not vary by more than 0.05 mm |
0.002 in. as measured at four points 90° apart at the operating temperature.
1.
Set the parallel alignment indicator (P) 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 (Y) is to the left of the pump coupling half (X).
Positive
The driver coupling half (Y) is to the right of the pump coupling half (X).
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.
4.4 Pump-to-driver alignment
Model CV 3196 i-FRAME Installation, Operation, and Maintenance Manual
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