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SEWtNG MACHINE DIV. 20 MODEL 385.19001890
MECHANICAL ADJUSTMENT
BUTTONHOLE LEVER
*IFTHE STEPSDO NOT CHANGE OR THE ENDS OF STITCHESARE NOT IN LINE WHILE BUT-
TONHOLE SEWING, ADJUST AS FOLLOWS:
1. ENTERADJUSTING MODE. TURN THE POWER SWITCH ON WHILE PRESSING THE START/
STOP KEYAND THE REVERSEKEY.PRESSTHELOCK STITCHKEY AND NEEDLE UP/DOWN
KEY WITHIN 2.5 SECONDS. THE LCD SCREEN SHOWS "BH SENSOR STATECLOSED".
2, LOOSEN THESCREW (A) AND MOVE THE BH LEVERGUIDE (B). THELCD SCREEN SHOULD
SHOW 'OPEN" WHEN THE BH LEVER ISLOWERED. THEN TIGHTEN THESCREW (A).
3, ATrACH THE BH FOOT "R"AND LOWER THE BH LEVER(C).
4. PUTGAUGE #U 1790 IN BEIWEEN THE SLIDING PART OF THE AUTOMATIC BUTPONHOLE
FOOT AND ITSEND, AS SHOWN.
5. LOOSEN SETSCREW (B), MOVE THESENSOR PLATE(E) FROM RIGHTTO LEFT,TIGHTENTHE
SETSCREW (D), AS THE LCD SCREEN CHANGES FROM (2) "OPEN" TO (3) "CLOSED'.
6. TURN ON THESWITCH AGAIN. SELECTBH #15 AND MAKE SUREITSEWSCORRECTLY.
NOTE: THE LCD SCREEN SHOWS (1) CLOSED (2) OPEN (3) CLOSED WHEN THE SENSOR
PLATEIS MOVED FROM RIGHT TO LEFTON STEP5. ADJUSTMENT SHOULD BESET
FROM (2) OPEN TO (3) CLOSED POSITION.
I CLOSED
(1)
LCD SCREEN
I BH SENSOR STATE 1
[CLOSED 1
LCD SCREEN
I+--[ OPEN] CLOSEDI
(2) (3)
LEFT RIGHT
(E)
BH LEVER (C)
BH LEVER GUIDE (B)
(D)
BH SENSOR
t
SCREW (A)
GAUGE #U 1790
(1.6 MM)
BH FOOT "R"
4O
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