Thread Release Holder Assy. Attachment - Brother PE770 Service Manual

Main unit
12

Thread release holder assy. attachment

1. Attach the tension release holder assy 1 to the thread guard assembly
using the 2 screws 1.
1
13
Upper thread PCB unit assembly
1. Attach the upper thread PCB assembly 1 to the thread sensor holder 2
with the screw 1.
*Key point
• Align the positioning tab on the thread sensor holder 2 with
the center of the oval positioning hole 3 on the upper thread
PCB assembly 1.
1
14
Upper thread PCB unit attachment
1. Attach the upper thread PCB unit 1 to the thread guide assembly with the
screw 1.
*Key point
• Engage the positioning tab on the thread guide assembly with
the positioning hole on the upper thread PCB unit 1.
• Check that the thread cutting shutter is positioned at the
center relative to the sensor of the upper thread PCB unit 1.
1
Thread tension mechanism
Screw, Bind
M3X4
0.78 — 1.18 N·m
Screw, Bind
M3X4
0.78 — 1.18 N·m
Screw, Bind
M3X4
0.78 — 1.18 N·m
Torque
1
Torque
Torque
1
1
2
1 3
1
1
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