JUKI MOL-254 Engineer's Manual page 41

Adjustment Procedures
1. Lightly press the Y motor in the direction of the arrow mark
and tighten three setscrews
2. Loosen four setscrews
direction of the arrow mark (⇨), and tighten setscrews
again.
If the pressing is insufficient, backlash of gear will be
increased and the accuracy of needle entry will be
decreased. Defective feed will result as well.
again.
, lightly press the X motor in the
34
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Results of Improper Adjustment
If the pressing is insufficient,
defective needle entry will
occur, and if the pressing is
excessive, X-Y moving torque
will be produced and defective
moving will occur.