RBS-T Linear Encoder Installation Manual and Owner’s Guide
P/N 70000426
All rights reserved. Subject to change without notice.
Page 17 of 43
03-Nov-98
3. Use a transfer punch to locate the position of the two reader head mounting holes
on the rear face of the saddle.
4. Drill and tap two #8-32 X 1/2” (minimum) mounting screw holes.
Nuts Not Installed In Reader Head Body
#8-32 Jack Screws
#8-32 Socket Head Mounting Screws
RB-6
Figure 13, X Axis Back Of Table Reader Head Mount
5. Refer to
Figure 13
. Set up an indicator so the probe measures the position of the
front the reader head.
Screw in the first jack screw until it just contacts the saddle. Continue turning the
jack screw until it pushes the reader head 0.001”. Do this for each of the three jack
screws. The reader head should be about 0.004” away from its original position.
6. 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.
7. 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.
8. After the installation is complete, perform a second visual inspection of the reader
head. Reinstall both end caps.
9. A saddle stop block should be installed to keep the encoder from accidentally being
crushed between the saddle and the machine column. The stop block is a block of
metal approximately 1/8” thicker than the encoder. The stop block should be bolted
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