Adjusting The Position Of The Moving Knife; Adjusting The Height Of The Thread Separating Claw Of The Moving Knife - JUKI MB-1800 Engineer's Manual
Dry-head type, high-speed, computer-controlled, single thread,
chainstich button sewing machine
(with automatic thread trimmer and knot-tying mechanism)
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Standard Adjustment
(2) Adjusting the position of the moving knife
Adjust the position so that the distance between the thread trimming connecting plat (front) and the edge of
the slot in the throat plate should be 12 to 13 mm when the button clamp is at its highest position.
2
1
6
3
5
8
4
9
7
(3) Adjusting the height of the thread separating claw of the moving knife
Make adjustment so that the clearance between the thread separating claw 1 and the looper 2 should
become 0.5 to 0.7 mm.
Top end of thread separation nail
0.5 to 0.7 mm
1
2
12
−
−
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