JUKI LU-2800 Series, Руководство инженера

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Adjustment procedures Results of Improper adjustment
1. Set the standard stitch dial to “6”.
2. Loosen hinge screw
❶ of the horizontal feed rear arm.
3. Center of elongate hole of the horizontal feed rear arm ❷ is
aligned with hinge screw nut
❸
of the horizontal feed rear arm.
Then tighten hinge screw
❶
of the horizontal feed rear arm.
4. Turn the handwheel to check the clearance (dimension C ) be-
tween the feed dog of anti-operator's side and the throat plate,
at the position so that the needle is away from the feed dog.
[Dimension C ]
• Standard gauge : 4 ± 0.2 mm
• Europe gauge : 3 ± 0.2 mm
(Standard) When Adjust the position of hinge screw nut ❸ of
the horizontal feed rear arm in the direction of arrow
A, the bottom feed amount is decreased. When Ad-
just the position of hinge screw nut
❸ of the hori-
zontal feed rear arm in the direction of arrow B, the
bottom feed amount is increased.
(Caution) When you desire to change the bottom feed amount,
re-adjust the needle entry position since the needle
entry position changes.
o
Needle breakage or stitch skip-
ping will result.