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4.2.3 Rigid couplings
Rigid couplings must be loosened before measurement so that they do not distort the
alignment condition.
4.2.4 Shaft play and coupling backlash
Axial shaft play is detected and compensated for in alignment results (but affects
machine operation).
4.2.5 Soft foot
Soft foot causes the machine frame distortion every time the bolts are loosened or
tightened, making proper alignment difficult or impossible.
4.2.6 Thermal growth, alignment targets, tolerances
These values can be obtained from the individual machine specifications, and then
entered into the program. In addition, a built in thermal growth calculator can help
you derive these values from the observed changes in temperature.
4.2.7 Measurement separation
As the system requires no mechanical connections (such as cantilevered dial indicator
brackets) to span over the coupling during measurement, alignment may easily be
performed over large laser – sensor separations.
Note that over very large distances the shafts and coupling may sag, and the machines
may need to be aligned to take this into account. Refer to the machine manufacturer’s
specifications.
4.3 Check soft foot
Refer to section 5.5 for soft foot.
4.4 Mount the brackets
Mount the brackets on either side of the coupling on either the shafts or on the solid
coupling hubs, and both at the same rotational position.
Please note the following in order to obtain the highest possible measurement
accuracy and to avoid damage to equipment:
Ensure that the brackets fit solidly onto their mounting surfaces!
Do not use self-constructed mounting brackets, or modify the original
bracket configuration supplied by PRÜFTECHNIK Alignment (for example,
do not use support posts longer than those supplied with the bracket).
CAUTION
Ensure that the brackets fit solidly onto their mounting surfaces!
Do not use self-constructed mounting brackets, or modify the original
bracket configuration supplied by PRÜFTECHNIK Alignment (for example,
do not use support posts longer than those supplied with the bracket).
Horizontal shaft alignment
Summary of Contents for ROTALIGN Ultra iS
Page 1: ...ROTALIGN Ultra iS Operating handbook Shaft alignment...
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Page 56: ...55 Horizontal shaft alignment 1 2 4 5 6...
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Page 213: ...ROTALIGN Ultra iS Shaft handbook 212 Declaration of conformity...