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22. BUTTONHOLE ADJUSTMENT (THE LENGTH OF THE BUTTONHOLE
AND THE PRESSURE OF THE BH LEVER) (1 STEP BH MODEL)
(B338
⋅
B341
⋅
B347
⋅
B348
⋅
B349
⋅
B351
⋅
B352)
STANDARD
The length of buttonhole should be 21 ~ 23 mm, when the button is 20.0 mm in diameter.
The pressure needed to pull the BH Lever forward should be 50 ~ 110 g.
ADJUSTMENT
1. Loosen the screw on BH change arm.
2. Adjust the position of BH lever according to below drawings.
3. Tighten the screw.
4. Loosen the screw for the eccentric nut.
5. Adjust eccentric nut so that the pressure needed to pull the BH Lever forward is 50 ~ 110 g.
(The eccentric nut should not be rotated more than half a turn.)
6. Tighten the screw.
* Adjust the timing of the BH lever using the BH notch screw.
Summary of Contents for BL6200
Page 1: ...4 1998 ...
Page 24: ... 22 1 ADJUSTMENT OF EACH CONTROL UNIT 4 STEP BH MODEL B346 ...
Page 25: ... 23 1 ADJUSTMENT OF EACH CONTROL UNIT 1 STEP BH MODEL B338 B341 B347 B348 B349 B351 B352 ...
Page 63: ... 61 3 LEAD WIRES ARRANGEMENT B338 B346 B347 B348 B341 B349 B351 B352 ...
Page 64: ... 62 LCD UNIT 1 LINE LCD TYPE ...
Page 65: ... 63 DISPLAY SYSTEM LCD control PCB LCD module 4 LINE LCD TYPE ...
Page 66: ... 64 MOTOR CONTROL UNIT 230V 120V MODE SWITCH UNIT 1 LINE LCD TYPE 4 LINE LCD TYPE ...