RBS-T Linear Encoder Installation Manual and Owner’s Guide
P/N 70000426
Page 26 of 43
All rights reserved. Subject to change without notice.
03-Nov-98
Reader Head Mounting Block
Encoder
Reader Head
Indicator
SLIDEIND
T
Figure 20, Indicator Setup for Cross Slide Reader Head Alignment
3. Refer to
Figure 20
. Set up an indicator so the probe measures the position of the
front the reader head. A hole is drilled in the center of the bracket to provide access
for the indicator probe.
Zero the indicator. Screw in the first jack screw until it just contacts the reader head.
Continue turning the jack screw until it pushes the reader head 0.001”. Do this for
each of the four jack screws. The reader head should be about 0.004” away from its
original position.
4. Using a torque wrench, tighten the two mounting screws to 24 in-lbs. Tightening the
reader head mounting screws should pull the reader head back against the jack
screws taking out the 0.004” and restoring its original position.
If the reader head does not return to within 0.001” of its original position, loosen the
mounting screws and repeat the alignment procedure. When repeating the
procedure, compensate the adjustments so the reader head returns to its original
position when the mounting screws are tightened.
5. Remove the plastic alignment brackets from the reader head.
NOTE:
Save the plastic alignment brackets. If the encoder is ever removed from
the machine, it cannot be reinstalled without the reader head alignment brackets.
6. After the installation is complete, perform a second visual inspection of the reader
head. Reinstall both end caps.
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