Bw Holder Supporter Attachment - Brother PE770 Service Manual

Main unit
4

BW holder supporter attachment

1. Attach the BW holder supporter 1 using the screw 1.
1
5
Bobbin winder holder assembly attachment
1. Attach the bobbin winder assembly 1 using the screw 1.
2. With the bobbin winder OFF, adjust the SW adjust plate left or right so that
the gap between the BW shaft holder assembly 1 and the BW-F SW assy
2 is 2.5 ± 0.3 mm, and fully tighten the screw 2.
1
2
6
Bobbin presser assembly
1. Attach the bobbin presser 1 to the bobbin winder cover 2 using the screw
1 and a M3 nut.
*Key point
• Set the side of the bobbin presser 1 with the least eccentricity
to the near side 3 (see figure to the right).
1
Bobbin winder mechanism
Taptite, Bind S
M4X10
1.18 — 1.57 N·m
Screw, Bind
M4X8
1.18 — 1.57 N·m
Screw, Bind
M3X6
0.78 — 1.18 N·m
Screw, Pan (S/P washer)
M3X20DA
1.18 — 1.57 N·m
Torque
2
2
Torque
Torque
2
Torque
1 1
1
1
1
2 2.5±0.3mm
1 1
3
3 - 13