Y-Axis Linear Guide Attachment - Yamaha SIGMA-G5SII Service Information

3.3. Y-axis Linear Guide Attachment

(1) Press the linear guide (Y1-axis) reference surface against the pilot pin on the left hand
side (reference side) viewing from the front of the table, and tighten it with the set bolt
(M6L20).
* Wipe out anti-rust oil in advance from the linear guide.
* Tighten the linear guide from the center position. (Tightening Torque: 14.7N.m)
* The linear guide direction Y is fixed at the center position.
Apply Screw Lock(1341) on the tap side.
When the linear guide is to be fixed, tighten the screws from the one around the beam
center toward the beam end.
* This procedure avoids the beam warp when the linear guide is fixed.
(2) Set the dial gauge with a single linear slider left.
Adjust the inclination so that the axis end angle is " zero " with the straight edge.
* When the linear slider is to be removed, take care not to lose the inside steel balls.
(3) Adjust the straightness so that it is within the standard range.
(Standard Range: Within 0.02mm)
Dial Gauge
(0.002mm)
(4) Adjust the parallelism of the linear guide.
Press the linear guide on the Y2-axis against the setup section and fasten it with the
set bolt.
* Wipe out anti-rust oil in advance from the linear guide.
* Tighten the linear guide from the center position. (Tightening Torque: 14.7N.m)
Press the linear guide against the pilot pin on the main
machine side and fix it.
* Refer to Item 3.5.2 (2) for the linear guide attachment
in the vertical direction.
Fig. C34
Y1-Axis Linear Guide
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Service Information
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Fig.C35
SI1705004E-00=SIGMA-G5SII Service Manual
For Service Engineer
Straight Edge