HIGHLEAD GC24818-1D, Инструкция по эксплуатации

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14.Timing between hook motion and opener motion(Fig.21)
１）
Rotate the balance wheel by hand to locate the opener holder to the farthest position away from the
throat plate.
２）
Make sure the clearance between the portion
①
of bobbin case and the opener is about 0.2mm as
shown in the right figure.
３）
If the clearance is too large or small, loosen opener screw
②
and adjust position of the opener.

ADJUSTMENT OF THREAD TRIMMER
1.Driving knife adjustment
In resting position the rear edge of the driving knife should be flush with the front edge of the counter-knife.
The fixed knife should abut on the thread pulling knife along its total width.
The pivoting driving knife should abut on the fixed knife after approx.1/3 of its width.
The driving knife must not collide with the bobbin case.
The clearance between the lower blade edge of the driving knife a and the lower surface of the inner rotary
hook b should be 0.3-0.4mm.
Checking:
Loosen two screws 1 for adjusting the resting position of the driving knife and adjust the
knife according to the standard, then tighten screws 1.
tightening the screws 1. The driving knife must be easily
2. Adjusting the fixed knife position and bobbin thread clamping.
g 5 has the function to hold the cut bobbin thread in order to avoid skipped stitches at the
seam beginning.
Attention:
Check the axial clearance of the knife shaft when
movable and the axial clearance as low as possible.
Checking:
The clamping sprin
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7
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