RBS-T Linear Encoder Installation Manual and Owner’s Guide
P/N 70000426
Page 10 of 43
All rights reserved. Subject to change without notice.
03-Nov-98
4. Refer to
Figure 6, Indicator Positioning For Reader Head Alignment
. Set up an
indicator so the probe measures the position of the front the reader head. A cutout
at the bottom of the bracket provides 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.
5. 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.
6. 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.
7. After the installation is complete, perform a second visual inspection of the reader
head and reinstall both end caps.
Y Axis Installation (Side Mount) On Lagun Type Machines
Lagun X and Y Axis Knee Mill Kit (P/N 32500073) provides mounting brackets and hardware
for Y-axis encoder installations (on the side of the knee) and X axis encoder installations (on
the front of the table) for Lagun type machines.
Install Y Axis Backer Bar
1. Position the saddle against the dead stop furthest from the column.
2. The backer bar is mounted using the existing holes on the side of the knee. Strip
the paint from the area around each hole to provide solid contact between the
spacers and the machine. Ensure the area around these holes is flat and free from
burrs.
Machines that do not have pre-existing holes, need to be drilled and tapped. The
best method for locating the holes will depend on the machine. If the saddle has
pre-drilled holes that can be used to attach the reader head mounting brackets, the
reader head brackets can be used as a guide for positioning the encoder and backer
bar.
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