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Needle Zigzag Mechanism - Brother LH4-B800E Service Manual

Electronic lockstitch button holer.
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1-3. Needle zigzag mechanism

t
1. The operation of the pulse motor q is transmitted as reciprocal motion to the zigzag lever e via the zigzag
connecting rod w.
2. The zigzag lever e is secured to the zigzag lever F assembly r, and causes the needle bar bracket slide block t
that is linked onto the end of the zigzag lever F assembly r to move in a reciprocal motion.
3. The needle bar bracket slide block t is linked to the groove in the needle bar bracket y and causes the needle
bar bracket y to move in a reciprocal motion.
r
y
LH4-B800E
1. MECHANISM DESCRIPTION
w
e
q
1 - 3

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