Goulds Pumps ANSI FAMILY IOM (ATEX Compliant) - IOM - Manual (Page 130)

3. Positive Reading - The coupling halves are
closer together on the right side than the left.
Correct by either sliding the shaft end of the driver
to the right or the other end to the left (Fig. III-3).
4. Repeat steps 1 through 3 until indicator A reads
.002 in. (.05 mm) or less.
5. Re-check both horizontal and vertical readings to
ensure adjustment of one did not disturb the
other. Correct as necessary.
PARALLEL ALIGNMENT
A unit is in parallel alignment when indicator P
(parallel indicator) does not vary by more than .002 in.
(.05 mm) as measured at four points 90° apart at
operating temperature. Note the preliminary vertical
cold setting criteria, Table 1.
Vertical Correction (Top-to-Bottom)
1. Zero indicator P at top dead center of coupling
(12 o’clock) half Y (Fig. III-1).
2. Rotate indicator to bottom dead center (6 o’clock).
Observe needle and record reading.
3. Negative Reading - Coupling half X is lower than
coupling half Y. Correct by removing shims of
thickness equal to half of the indicator reading
under each driver foot.
Positive Reading - Coupling half X is higher than
coupling half Y. Correct by adding shims of
thickness equal to half of the indicator reading
from each driver foot (Fig. III-4).
NOTE: Equal amounts of shims must be added
to or removed from each driver foot. Otherwise
the vertical angular alignment will be affected.
4. Repeat steps 1 through 3 until indicator P reads
within .002 in. (.05 mm) or less when hot, or per
Table 1 when cold.
Horizontal Correction (Side-to-Side)
1. Zero indicator 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
needle and record reading.
3. Negative Reading - Coupling half Y is to the left
of coupling half X. Correct by sliding driver evenly
in the appropriate direction (Fig. III-5).
Positive Reading - Coupling half Y is to the right
of coupling half X. Correct by sliding driver evenly
in the appropriate direction.
NOTE: Failure to slide motor evenly will affect
horizontal angular correction.
4. Repeat steps 1 through 3 until indicator P reads
.002 in. (.05 mm) or less.
5. Re-check both horizontal and vertical readings to
ensure adjustment of one did not disturb the
other. Correct as necessary.
128
ANSIFAM IOM - 5/08
Fig. III-3
Fig. III-4
Fig. III-5