Service manual

S-4000 BH Omron
1-40
Released 05/2010
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E - MACHINE ADJUSTMENTS
2. Second bar adjustment
Insert a piece of paper under the clamp feet. Turn the
handwheel through the sewing cycle until the control
spring
➎ release the left shifter arm pocket ➏. Check to
see that the clamp plate starts to move to the left just as the
needle point rises from the work piece approximately
1 mm.
If the adjustment is incorrect:
a) If the clamp plate moves when the needle is
in the work
a1) loosen the screws ➌ in the worm gear
a2) hold the worm gear ➍ by hand and turn the
handwheel counter clockwise slightly
a3) tighten the screws ➌ and recheck the
adjustment. Repeat as needed.
b) The clamp plate moves when the needle
tip is higher than 1 mm above the work
surface
b1) loosen the screws ➌ of the worm gear
b2) hold the worm gear ➍ by hand and turn the
handwheel clockwise
b3) tighten the screws ➌ and recheck the
adjustment. Repeat as needed.
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