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Adjustment Procedures Results of Improper Adjustment
Adjustment Procedures Results of Improper Adjustment
1. Set the stitch dial to “6 mm”.
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, the feed amount
of normal and reverse feeds are nearly the same.
™ Vibration is increased.
™ Respective stitch lengths of
normal and reverse feeds do not
match.
1. Turn the handwheel to face the screw No. 1 in horizontal feed
cam 2 directly above.
2. Adjust so that the screw No. 1 in balancer 1 is aligned with the
screw No. 1 in horizontal feed cam 2, and securely tighten the
setscrews.
At this time, the edge of top feed cam 3 comes in close contact
with that of balancer 1.
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