HORIZONTAL FEED TIMING AGAINST CHAINSTITCH NEEDLE 16b
Note: It is essential to precisely check and adjust this timing.
This adjustment avoids bending the chain needle(s) when sewing through maximum thickness
of materials.
1. Remove: Mains lead - Machine base
2. Check adjustment height of feed dog and vertical feed timing. (See page 14 and 15a,b)
3. Set stitch length at "4" and differential feed dial at the neutral position "1".
4. Bring needle bar to its heighest position.
5. Place a sheet of paper underneath the presser foot. Lower presser foot. (Fig.1)
6. Turn the handwheel clockwise and bring tip of "L0" needle into the paper, then turn the
handwheel counterclockwise all the way and bring tip of "L0" needle flush or into the
paper.(Fig.2)
7. Check if the needle point is set in the middle or in the front edge of the open hole on the
paper. See figure 3 for correct setting "A1-A2".
8. If not, loosen screw "a" and hold the feed eccentric "3" in position. Then turn the
handwheel clockwise or counterclockwise as shown in figure 4 in order to get the correct
setting and tighten screw "a".
9. Recheck the adjustment and if necessary re-adjust the position of feed eccentric "3".
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