Brother AE2700, Service Manual

Page: 132 / 205

3 - 60
Needle threading mechanism Application of Assembly
Application Application
2
Assembly of Needle threading unit
2-1 Assembly of Thread guard assy
„
Type A
1. Set the thread tension adjusting screw
1
to the thread tension nut
2
.
2. Insert the tension disc A
3
, the tension plate
4
, the tension release plate
5
, the spring holder
6
and the spring in this order into the shaft
7
of the thread tension holder assy
8
.
*Key point
• Check that align the notch part
9
of the tension disc A
3
and
the tension plate
4
with the protrusion of the thread tension
holder assy
8
.
3. Engage the groove part
0
of the thread tension dial
A
with the protrusion
of the thread tension nut
2
, and insert the thread tension adjusting screw
1
into the shaft
7
of the thread tension holder assy
8
, and then set the
thread tension dial
A
to the thread tension holder assy
8
with the tension
dial shaft
B
.
*Key point
• Set the tension dial shaft
B
to the thread tension dial
A
in the
state that the (9) of the thread tension dial
A
is the topmost
position.
4. Set the notched spring
C
to the thread tension holder assy
8
with the
screw
1
.
*Key point
• Attach the end of the notched spring
C
to the lower side of the
thread tension dial
A
.
• Check that engage the boss part of the thread tension holder
assy
8
with the positioning hole of the notched spring
C
.
<In case of Type B, refer to next page.>
1
S07
S07
B
A
5
8
7
0
4
6
1
2
3
B
0
2 C 1 1
A 8
9
S07
Screw, Pan
M3X4
7.6
12
SPRING
X55842***