Yamaha SIGMA-G5SII Service Information page 102

Apply Screw Lock(1341) on the tap side.
Attach the parallelism adjusting jig onto the linear slider on the Y1-axis and Y2-axis
and adjust the parallelism.
(Standard Range: Within 0.02mm)
*Do not fix the bolts.
Y1-Axis Linear Guide
(5) After the attachment, push the blind plugs into the holes of the linear guide set bolts in
parallel each other.
* Any blind plug or burr should not come out from the linear guide upper surface.
Service Information
* Check the entire
movable section.
Dial Gauge
(0.002mm)
Fig. C36
SI1705004E-00=SIGMA-G5SII Service Manual
102/273
For Service Engineer
Y1-Axis Linear
Guide
Parallelism Adjusting Jig