Bobbin Winder Unit - Brother NV4000D Service Manual

Computized sewing machine
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Main unit
1
BW motor assembly attachment
1. Attach the BW motor assembly 1 to the bobbin winder holder assembly
2 with the 3 screws 1.
*Key point
• Insert the shaft of the BW motor assembly into the groove on
the bobbin winder holder assembly.
1
2
Bobbin presser attachment
1. Position the bobbin winder cam 1 of the BW motor assembly laterally.
2. Place the bobbin presser 2 onto the shaft of the bobbin winder holder
assembly (longer shaft at the center), and attach the retaining ring (E3).
3
Bobbin presser guide assembly attachment
1. Place the polyester slider 1 and then the bobbin presser guide 2 onto the
shaft of the bobbin winder holder assembly (shorter shaft on the left side),
and attach the retaining ring (E3).

Bobbin winder unit

Screw, Bind
M3X3
0.79 – 1.18 N
Color; Silver
1
Torque
·
2
m
Retaining ring E3
2
1
Retaining ring E3
2
1
1
2
3 - 15

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Nv4000

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