Y-Axis Linear Scale Change Procedure; Y-Axis Linear Scale Removal; Y-Axis Linear Scale Attachment - Yamaha SIGMA-G5SII Service Information

3.6. Y-Axis Linear Scale Change Procedure

3.6.1. Y-Axis Linear Scale Removal

(1) Shut down the power to the machine.
(2) Remove the feeder cart from the main machine.
(3) Remove the pick-up area protection cover on the machine side.
(4) Remove the cable ties which fix the scale head cables.
(5) Loosen the two setscrews for the scale head fixing block to remove.
(6) Loosen the two setscrews for the scale head to remove it from the bracket.
(7) Loosen the nine setscrews for the linear scale to remove.
Remove the two bolts fixing the block. (Refer
to Fig. C47).
Loosen the two scale head set bolts and
remove the scale head from the fixing block
(Refer to Fig. C48).

3.6.2. Y-Axis Linear Scale Attachment

(1) Attach the linear scale based on the frame knock pin (lower side).
Attach the linear scale after aligning it
with the knock pin side as shown in the
right figure.
Because the adjustment operation is
required after Step (2), it should be
fixed temporarily.
(2) Tighten the nine setscrews to temporarily fix the linear scale.
* For the linear scale position adjustment, the following conditions should be satisfied.
Fig.C47
Fig.C49
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Fig.C48
SI1705004E-00=SIGMA-G5SII Service Manual