Yamaha YK-X Series User Manual page 100

CHAPTER 4 Adjustment
Mounting bolt for Y-axis speed reduction unit
15) Temporarily fasten the Y-axis origin sensor stay using the bolts. At this point,
check that the sensor does not interfere with any parts while turning the Y-
axis arm by hand.
16) Go out of the safeguard enclosure, and check that no one is inside the safe-
guard enclosure. Then turn on the controller.
17) Perform the absolute reset from outside the safeguard enclosure.
18) After the absolute reset is completed, read the machine reference value dis-
played on the MPB.
19) If the machine reference value is in the range between 40 and 60 (recom-
mended range), then the origin position has been correctly changed. Fully
tighten the bolts to secure the Y-axis origin sensor stay. If it is outside the
recommended value, then adjust the machine reference by referring to "2-1
Adjusting the Y-axis machine reference".
20) Reattach the cover after the adjustment is complete.
Factory-preset
Y-axis origin position
Dog
Fig. 4-7
4-20
Y-axis origin position adjustable range