Y
Granite Parallel
Granite Square
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Y
1. Set up the granite parallel and square, as shown in the above illustration, to check Y-axis tilt relative to
the X-axis. Position the square so that its edge overhangs the parallel enough to take an indicator
reading on the underside of the square (parallel to the X-axis). Before taking this reading, adjust the
square by indicating across its vertical edge to ensure that it is parallel with the Z-axis (obtain a zero
reading). Now indicate the underside of the square to verify a zero reading. If the reading is not zero,
check that all surfaces are clean.
NOTE:
The granite parallel may need to be shimmed to obtain a zero reading, due to
table surface tolerance.
2. With the indicator positioned as shown in the illustration, slowly jog the Y-axis a minimum of 24" to
check Y-axis tilt relative to the X-axis.
3. Set up the granite parallel and square, as shown in the above illustration, to check Y-axis tilt relative to
the Z-axis. Position the square so that its edge overhangs the parallel enough to take an indicator
reading on the underside of the square (parallel to the Z-axis). Before taking this reading, adjust the
square by indicating across its vertical edge to ensure that it is parallel with the X-axis (obtain a zero
reading). Now indicate the underside of the square to verify a zero reading. If the reading is not zero,
check that all surfaces are clean.
NOTE:
The granite parallel may need to be shimmed to obtain a zero reading, due to
table surface tolerance.
4. With the indicator positioned as shown in the illustration, slowly jog the Y-axis a minimum of 24" to
check Y-axis tilt relative to the Z-axis.
NOTE:
The readings in steps 2 and 4 are not to exceed 0.0005" for 24" of travel.
NOTE:
If the X-axis roll, Z-axis pitch and roll, and the indication in the Z-axis across
the platter or table are correct, the column square should also be within
specification, or very close to it. Small adjustments to the leveling can be made
without compromising the overall accuracy of the machine. If excessive
adjustment is necessary to bring the column square into tolerance, or if you
have any questions, please contact the Haas factory service department for
technical support.
© Copyright 2015 by Haas Automation, Inc. No unauthorized reproduction.
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