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(2) With the feed regulator stud held as explained is step (1) above,
adjust the feed regulator bracket. This adjustment should insure a clearance of
12mm between the periphery of pin "B" located on the feed regulator bracket
and the top cover mounting face located on the arm. Tighten screw "C".
4) Feed pitch adjustment of walking foot (Fig.13):
The ratio of the upper feed amount (of the walking foot) to the lower feed
amount (of the feed dog) has been adjusted to 1 :1. Hawe¥er,
lhe .
.walking. fo.ot
feeding amount can be increased or decreased depending on the operating
conditions. Loosen the nut located on the upper feed rock shaft crank (left), and
shift to adjust the position of the pivot bracket
upward or downward.
Upper position-Feed pitch-Small
Lower position-Feed pitch- Large
Fig.l3
Fig.l4
14. Adjustment of stitch length and reverse sewing
(Fig.14):
I) To change the stitch length, rotate the stitch length adjusting dial.
2) Pressing the stitch length adjusting lever for reverse stitching.
15. Safety clutch device: (Fig.15, 16, 17, 18):
Safety clutch device is installed to prevent the hook and cog belt from
8
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