JUKI LU-1510N Engineer's Manual page 31

Adjustment Procedures
1. Set the stitch dial to "6".
2. Loosen two setscrews 1 in the feed adjusting eccentric pin.
3. Turn feed adjusting eccentric pin 2 to adjust the stitch
™ length.Direction A / reverse feed pitch is increased.
™ Direction B / normal feed pitch is increased.
4. After the adjustment, securely tighten two setscrews 1 in the
feed adjusting eccentric pin.
(Standard) When the direction of the notch of feed adjusting
eccentric pin 2 is set to the right sideway as shown in the
illustration, the feed amounts of normal and reverse feeds
are nearly the same.
Adjustment Procedures
1. Turn the handwheel to face above screw No. 1 in top feed cam
2.
2. Adjust so that screw No. 1 in balancer 1 aligns with screw No.
1 in top feed cam 2 and securely tighten two setscrews in
balancer 1.
At this time, make almost equal the clearances between the
edge of top feed cam 2, the upper shaft inner metal and the
edge of balancer 1.
Results of Improper Adjustment
™ Respective stitch lengths of
normal and reverse feeds do not
match.
Results of Improper Adjustment
™ Vibration becomes big.
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