Goulds Pumps 7200CB - IOM User Manual

Page 26

Advertising
background image

Installation

When the reading value is...

Then...

Positive

The coupling halves are closer together on the right side
than the left. Perform one of these steps:
• Slide the shaft end of the driver to the right.
• Slide the opposite end to the left.

Figure 7: Example of incorrect horizontal alignment (top view)

4. Repeat the previous steps until the permitted reading value is achieved.

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.
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:

24

Model 7200CB, API Type BB5 Barrel Multistage / ISO 13709 2nd Edition / API 610 11th Edition Installation, Operation, and

Maintenance Manual

Advertising