Brother LK3-B448E Sewing Machine User Manual


 
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10. Adjustment
LK3-B448E MARKII/BA-16
10-16. Button replacement
10-16-1. Adjustment when the button diameter is changed
Slide base adjustment
1. Adjust the width of the slide base assembly w to the button width with slide base screw e so that the bottons
q pass smoothly.
The bed slide base assembly w can be adjusted for button diameters of 9 to 22 mm.
Adjust so that the clearance between the buttons q and the edge of the slide base assembly w is 0.5-1.0 mm.
2. There are 3 different button upper covers r. The cover for standard button sizes of 9 to 13 mm is factory
installed.
To attach buttons from 13 to 22 mm in diameter, loosen screw t and replace cover r (nonstandard accessories).
3. When the button diameter is changed, adjust button stopper A y with the adjusting screws u. Adjust until
stopper A y slides into the groove of the upper cover r and comes into contact with the second button
(position A).
Button clamp adjustment
1. Loosen step screw q and insert a button into the button clamp w.
2. Lightly tighten step screw q, and remove the button.
3. Close the button clamp w opening 0.5 to 1.0 mm using the plate e.
4. Firmly tighten step screw q.
5. After the button is inserted, push the lever r slightly in the direction of the arrow to check that the trouble
indicator t does not blink.
* If the indicator blinks, move slightly and narrow the button clamp w opening (mentioned in 3. above).
0.5mm~1.0mm
AUTO 1
AUTO 2
OFF
BA-16
t