Brother HS-3000, Service Manual

Page: 73 / 164

3 - 20
Main parts Main unit
31
Thread guide assy. A attachment
1. Attach the thread guide A assy.
1
with the 2 screws
1
.
*Key point
• Insert the wire of the thread tension holder assy. B 1 into the
groove on the front cover assy., and then insert the boss into
the hole on the front cover assy..
1
2
Torque
0.78 — 1.18 N
·
m
1
1
Taptite, Bind B
M4X14
31-1
Thread guide assy. A assembly
1. Attach tension disc A
2
, tension disc B
3
, washer
4
, thread release plate
5
, tension disc washer
6
, washer
7
, and spring
8
in this order to the
caulking shaft of the thread tension holder assy.
1
.
2. Attach the thread tension adjusting screw
;
to the thread tension plate
9
.
3. Engage the ridge of the thread tension plate
9
with the groove on the
thread tension dial
A
, insert them into the caulking shaft of the thread
tension holder assy.
1
, and secure them with the tension dial shaft
B
.
4. Attach the notch spring
C
to the thread tension holder assy.
1
with the
screw
1
.
*Key point
• Hold the notch spring with the ridge side up, and insert it into
the lower thread tension dial A . Align the round hole with the
boss on thread tension holder assy. 1 .
1
Torque
0.78 — 1.18 N
·
m
1
1
9
8
6
5
3
;
2
4
7
B
C
A
Screw, Pan
M3X4