Goulds Pumps 3393 - IOM - Manual (Page 30)

Installation
1. Shims
Figure 9: Example of incorrect vertical alignment (side view)
4. Repeat the previous steps until the permitted reading value is achieved.
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 (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.
Figure 10: Example of incorrect horizontal alignment (top view)
5. Repeat the previous steps until the permitted reading value is achieved.
Perform complete alignment for a vertical correction
A unit is in complete alignment when both the angular indicator (A) and the parallel indicator (P)
do not vary by more than 0.002 in. (0.05 mm) as measured at four points 90° apart.
1. Set the angular and parallel dial indicators to zero at the top-center position (12 o’clock) of
the driver coupling half (Y).
2. Rotate the indicators to the bottom-center position (6 o’clock).
3. Record the indicator readings.
4. Make corrections according to the separate instructions for angular and parallel alignment
until you obtain the permitted reading values.
28 Model 3393 Installation, Operation, and Maintenance Manual