ITT GOULDS PUMPS 3393, Инструкция по установке, эксплуатации и обслуживанию

Страница: 34 / 125

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 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 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.
1
Item Description
1. Shims
Figure 15: Example of incorrect vertical alignment (side view)
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.
4.4.8 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).
4.4 Pump-to-driver alignment
32 Model 3393 Installation, Operation, and Maintenance Manual