Adjusting The Right/Left Position Of The Needle Bar - Brother LZ2-B855E Service Manual

6. ADJUSTMENTS

6-9. Adjusting the right/left position of the needle bar

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Adjust so that the needle is almost exactly in the center of the groove in the needle plate hole when the power is
turned on, the zigzag width is set to zero on the operation panel (when the PATTERN key is set to "1" (straight stitch),
the zigzag width will become 0.0 mm) and the zigzag reference line position is set to 0 mm.
1. Turn off the power switch.
2. Remove the presser foot and the rear cover while making this adjustment.
3. Adjust so that the clearance between the edge of the zigzag joint q and the edge of the bushing w on the ma-
chine head is the same as the width 1 on timing gauge "A" e when the needle is in the center of the needle plate
hole (groove).
Loosen the screw r of the zigzag joint q to adjust.
* After adjusting, securely tighten the screw r, while being careful not to screw it in too tightly and so that the
zigzag joint q does not get twisted.
4. Turn on the power.
5. Press the TEST key t on the operation panel and check that the TEST indicator y illuminates.
(Be sure to carry out this step as a safety measure. It will prevent the sewing machine motor from operating even
if the treadle is depressed.)
6. Use the operation panel keys to set the zigzag width and the zigzag reference line position to "0". Refer to the
instruction manual for details on how to make these settings.
After making the settings, press the SET key u. The needle bar will then move sideways to determine the home
position.
If the needle home position does not align with the center of the needle plate hole (groove), make the following
adjustment.
7. Adjust the home position sensor t so that the needle home position is aligned with the center of the needle plate
hole (groove).
Loosen the screw y, and then move the home position sensor t by the same distance that the needle home
position is out of alignment.
After adjusting, press the SET key u twice so that the needle bar moves to the home position.
Repeat this step until the needle home position is aligned with the center of the needle plate hole.
8. Press the TEST key t on the operation panel. The TEST indicator y will switch off and the sewing machine will
return to normal sewing mode. Then press the power switch to turn off the power.
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