ITT Goulds Pumps V 3298, Инструкции по установке, эксплуатации и обслуживанию

Страница: 20 / 148

SET UP
1. Mount two dial indicators on one of the coupling
halves (X) so they contact the other coupling half (Y)
(Fig. 17).
2. Check setting of indicators by rotating coupling half X
to ensure indicators stay in contact with coupling half
Y but do not bottom out. Adjust indicators
accordingly.
MEASUREMENT
1. To ensure accuracy of indicator readings, always rotate
both coupling halves together so indicators contact the
same point on coupling half Y. This will eliminate any
measurement problems due to runout on coupling half
Y.
2. Take indicator measurements with driver feet hold
down bolts tightened. Loosen hold down bolts prior to
making alignment corrections.
3. Take care not to damage indicators when moving
driver during alignment corrections.
ANGULAR ALIGNMENT
A unit is in angular alignment when indicator A (Angular
indicator) does not vary by more that .002 in. (.05 mm) as
measured at four locations 90° apart.
Vertical Correction (Top to Bottom)
1. Zero indicator A at top dead center (12 o’clock) of
coupling half Y.
2. Rotate indicators to bottom dead center
(6 o’clock). Observe needle and record reading.
3.
Negative Reading
- The coupling halves are further
apart at the bottom than at the top. Correct by either
raising the driver feet at the shaft end (add shims) or
lowering the driver feet at the other end (remove
shims) (Fig. 18).
Positive Reading
- The coupling halves are closer at
the bottom than at the top. Correct by either lowering
the driver feet at the shaft end (remove shims) or
raising the driver feet at the other end (add shims).
4. Repeat steps 1 through 3 until indicator A reads .002
in (.05 mm) or less.
Horizontal Correction (Side to Side)
1. Zero indicator A on 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
- The coupling halves are further
apart on the right side than the left. Correct by either
sliding the shaft end of the driver to the left or the
other end to the right.
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. 19).
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.
20
3298 Family Rev. 4/07
Fig. 17
Fig. 18
Fig. 19