Goulds Pumps 3298 - IOM - Manual (Page 30)

Installation
When the reading value is... Then...
Figure 10: Top view of an incorrect horizontal alignment
4. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for angular alignment:
• 0.002 in. (0.05 mm) total indicated runout at operating temperature
Perform parallel alignment for a vertical 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.
Before you start this procedure, make sure that the dial indicators are correctly set up.
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.
When aligning a cold unit, see the Cold settings for vertical parallel alignment table.
1. Set the parallel alignment indicator (P) to zero at the top-center position (12 o’clock) of the
driver coupling half (Y).
2. Rotate the indicator to the bottom-center position (6 o’clock).
3. Record the indicator reading.
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 (Y). Add shims of a thickness
equal to half of the indicator reading value to each
driver foot.
NOTICE:
Figure 11: Side view of an incorrect vertical alignment
4. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for parallel alignment:
• 0.002 in. (0.05 mm) total indicated runout at operating temperature
During installation, when the pump is cold, adjust the parallel vertical alignment to a setting
that allows for expansion rates of the pump and drive at operating temperature:
28 3298 Family Installation, Operation, and Maintenance Manual