HIGHLEAD GC20618 Series, Instruction Manual Parts Catalog

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CONTENTS
PRECAUTIONS BEFORE STARTING OPERATION
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1
PREPARATION FOR OPERATION
1. Power cable connection ------------------------------------------------------------------------ 2
2. Connection of control box
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3
3. Adjustment of needle bar stop position --------------------------------------------------------- 3
CAUTIONS ON USE
1. Oiling (1)
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4
2. Oiling (2) --------------------------------------------------------------------------------------- 4
3. Oiling condition --------------------------------------------------------------------------------- 4
4. Adjustment of oiling to rotating hook
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5
5.
Cautions on operation
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5
OPERATION
1.
Installation of needles ---------------------------------------------------------------------------- 5
2.
Winding of bobbin thread
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5
3.
Selection of thread ------------------------------------------------------------------------------ 6
4. Threading of needle threads --------------------------------------------------------------------- 6
5. Adjustment of feed (stitch) length and stitch reversing (touch-back) --------------------------- 7
6. Setting of bobbin
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7
7. Threading of bobbin threads -------------------------------------------------------------------- 7
8. Tension adjustment of bobbin threads
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8
9. Balance of thread tension ---------------------------------------------------------------------- 8
10. Needle thread tension --------------------------------------------------------------------------- 8
11. Adjustment of presser foot pressure
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8
12. Timing between rotating hook motion and needle motion -------------------------------------- 8
13. Adjustment of feed dog height
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9
14. Relationship between rotating hook motion and take-up lever motion ------------------------- 10
15. Relationship between hook motion and opener motion ---------------------------------------- 10
16. Relationship between needle motion and feed dog motion
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10
17. Safety clutch device ---------------------------------------------------------------------------- 11
18. Upper feed adjustment (needle side)
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12
19. Outside presser foot and inside presser vertical stroke adjustment ----------------------------- 12
20. Adjustment of forward/backward stitch length ------------------------------------------------- 12
21. Installation of movable knife
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13
22. Adjustment of thread trimmer cam -------------------------------------------------------------- 13
23. Adjustment of needle threads tension release assembly
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14
24. Adjustment of scissoring pressure of movable knife and fixed knife ---------------------------- 14
25. Sharpening of fixed knife ----------------------------------------------------------------------- 15
26. Adjustment for change of needle to needle distance
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15
SPECIFICATIONS
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