JUKI AMB-289, Engineer'S Manual

Page: 25 / 177

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1. Loosen four setscrews , lightly press Y bottom feed motor in the
direction of arrow mark, and tighten four setscrews again, while
moving the top feed unit to and fro and confirming that it smoothly
moves within the movable range.
2. Apply grease (green : grease tube) to lengthwise feed gear section
.
3. Turn ON the power, and confirm whether there is any looseness after
the origin retrieval.
4. For adjusting the origin position, refer to “2) Adjusting the bottom
feed origin sensor” of “(16) Adjusting the respective sensors”.
o When pressing is insufficient,
backlash becomes large, and
pressing is excessive, torque
becomes large. Then step-out
may be caused.
Adjustment Procedure Results of Improper Adjustment