ITT Goulds Pumps 3500XD, Инструкции по установке, эксплуатации и обслуживанию

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2. Check setting of indicators by rotating coupling half X to ensure indicators stay in contact with cou-
pling half Y but do not bottom out. Adjust indicators accordingly.
3.5 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.
3.5.1 Angular alignment
A unit is in angular alignment when indicator A (Angular indicator) does not vary by more than .05 mm
(.002 in.) as measured at four points 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 feet at the other end (re-
move shims) (Fig. 11).
Positive Reading - The coupling halves are closer at the bottom than at the top. Correct by ei-
ther lowering the driver feet at the shaft end (remove shims) or raising the driver feet at the other
end (add shims).
Figure 11: Side view
4. Repeat steps 1-3 until indicator A reads .05 mm (.002 in) 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). Ob-
serve 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. Cor-
rect by either sliding the shaft end of the driver to the right or the other end to the left (Fig. 12).
3.5 Measurement
3500XD Installation, Operation and Maintenance Instructions 19