Adjusting The Work Clamp Lateral Position; Adjusting The Knife Home Position Sensor Position - Brother LH4-B800E Service Manual

4-9. Adjusting the work clamp lateral position

1. Loosen the set screw q, and then move the feed arm w and the roller e to adjust so that the knife groove comes
to the center of the work clamp window.
* After adjusting, operate the presser foot lifter pedal and check that the work clamp moves up and own smoothly.
* After adjusting, check the upper thread trimmer mechanism and adjust if necessary.

4-10. Adjusting the knife home position sensor position

q
1. Loosen the screw q, and then adjust the knife sensor assembly r so that there is a clearance of 4.5 ± 0.5 mm
between the side of the sensor w and the edge of the solenoid stopper e.
q
e
r
LH4-B800E
w
4.5 0.5 mm
q
4. Adjustment
r
w
e
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