Goulds Pumps ANSI FAMILY IOM (ATEX Compliant) - Manual (Page 27)

COMPLETE ALIGNMENT
A unit is in complete alignment when both indicators A
(angular) and P (parallel) do not vary by more than .002
in. (.05 mm) as measured at four points 90° apart.
Vertical Correction (Top-to-Bottom)
1. Zero indicators A and P at top dead center
(12 o’clock) of coupling half Y.
2. Rotate indicator to bottom dead center (6 o’clock).
Observe the needles and record the readings.
3. Make corrections as outlined previously.
Horizontal Correction (Side-to-Side)
1. Zero indicators A and P on the left side of
coupling half Y, 90° from top dead center (9
o’clock).
2. Rotate indicators through top dead center to the
right side, 180° from the start (3 o’clock). Observe
the needle, measure and record the reading.
3. Make corrections as outlined previously.
4. Recheck both vertical and horizontal readings to
ensure adjustment of one did not disturb the
other. Correct as necessary.
NOTE: With experience, the installer will under-
stand the interaction between angular and
parallel and will make corrections appropriately.
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