Removal Of Thread Guard Supporter Assy - Brother XM3700 Service Manual

Application of Disassembly
Type B
1. Remove the screw 1, and then remove the notched spring 1 from the
thread tension holder assy 2.
2. Remove the tension dial shaft 3, and then remove the thread tension dial
4 and the thread tension nut 5 from the shaft of the thread tension holder
assy 2.
*Key point
• Turn the thread tension dial 4 until see the tension dial shaft
3 by feeding the thread tension nut 5 to the left side.
3. Remove the thread tension adjusting screw 6 from the thread tension nut
5.
4. Remove the spring S07
the tension plate 9 and the tension disc A 0 from the shaft of the thread
tension holder assy 2.
3

Removal of Thread guard supporter assy

1. Remove the screw 1, and then remove the thread guard supporter assy 1.
*Key point
• There is a model without the thread guard supporter assy 1.
Needle threading mechanism
, the spring holder 7, the tension release plate 8,
<In case of Type A, refer to previous page.>
3 - 23
S07
4
6 5 3
2
4
8
9
0
S07
7
1
1
2
1 1
3
5
6