JUKI DNU-1541 Engineer's Manual page 7

Adjustment Procedures
1. Set the stitch dial to "0".
2. Turn the handwheel to bring the needle bar to the lowest dead
point of its stroke.
3. Loosen clamping screw 1 in the needle bar rocking rear arm.
4. Provide a clearance of 8 ± 0.2 mm between presser bar 2 and
walking bar 3 and securely tighten the clamping screw.
(In the state that the presser foot is raised, adjust the clearance
to 8 ± 0.2 mm at the position where the distance from the top
surface of the throat plate to the presser foot is 60 mm.)
(Caution) Tighten the screw so that the needle bar rocking
shaft has no thrust play.
Adjustment Procedures
1. Set the stitch dial to "0".
2. Turn the handwheel to bring the needle bar to the lowest dead
point of its stroke.
3. Loosen clamping screw 3 in the feed rocker.
4. Move the feed base and adjust so that needle 1 enters in the
center of the needle hole in feed dog 2. Then securely tighten
the clamping screw in the feed rocker.
(a = a')
(Standard)
When the feed amount is maximum, A = approximately 1.5
mm.
Results of Improper Adjustment
™ Stitch skipping or needle
breakage will result.
™ Poorly tensed stitches will result.
Results of Improper Adjustment
™ The throat plate comes in
contact with the feed dog and
contacting noise occurs and the
throat plate or the feed dog may
be damaged.
™ Irregular stitches may result.
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