Revision
8
–
November
2011
65
DIAL INDICATOR (RIM-AND-FACE) ALIGNMENT
PROCEDURE
Alignment procedures must be followed to prevent
unintended contact of rotating parts. Follow coupling
manufacturer's installation and operation procedures.
Appendix III
details the procedure to be followed when
using the dial indicator (rim-and-face) method of aligning
pump and motor shafts.
Other alignment methods (reverse dial indicator, laser) are
acceptable. Maximum allowable misalignment criteria for
these methods are shown in
Table III-1
.
Good alignment is achieved when the dial indicator
readings as specified in this alignment procedure are equal
to 0.05 mm (.002 in.) Total Indicator Reading (T.I.R.) is
less when the pump and driver are at operating temperature
(Final Alignment).
SET UP
1
Mount two dial indicators on the pump coupling half X
so they contact the driver coupling half Y (Fig. III-A).
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
To ensure accuracy of indicator readings:
1.
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.
1
Take indicator measurements with driver foot hold
down bolts tightened. Loosen hold down bolts prior to
making alignment corrections.
2
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 than 0.05 mm (.002 in.) as
measured at four points 90° apart at operating temperature.
Vertical Correction (Top-to-Bottom)
1
Zero indicator A at top dead center (12 o’clock) of
coupling half Y (Fig. III-B).
2
Rotate indicators/coupling halves to bottom dead
center (6 o’clock). Observe needle and record reading.
3a.
Negative Reading -
The coupling halves are
farther apart at the bottom (6 o’clock) position than at the
top (12 o’clock). Correct by adjusting leveling screws near
the center foundation bolts in order to raise the center of
the baseplate (Fig. III-B). See Notes A and B.
3b.
Positive Reading -
The coupling halves are
closer at the bottom (6 o’clock) position than at the top
(12 o’clock) position. Correct by adjusting leveling
screws near the center foundation bolts in order to lower
the center of the baseplate (Fig. III-B). See Notes A and
B.
Содержание TSMP Series
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Страница 12: ...12 Revision 8 November 2011 Examples Figure 1 Proper lifting method Figure 2 Proper lifting method...
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Страница 46: ...46 Revision 8 November 2011 Assemble is reverse sequence of disassemble...
Страница 54: ...54 Revision 8 November 2011 SECTIONAL Drawing of Typical TSMP...
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