3 - 4
Main parts
Application of Disassembly
2
Disassembly of
Front cover assy
2-1 Removal of
Thread tension holder A assy
1. Remove the 2 screws 1, and then remove the thread tension holder A
assy. 1.
1
1
2-1-1 Disassembly of Thread tension holder A assy
1. Remove the screw 1, and then remove the notch spring 1 from the thread
tension holder A assy. 2.
2. Remove the thread dial shaft 3, and then remove the thread tension dial 4
and the thread tension plate assy. 5 from the thread tension holder A assy.
2.
*Key point
• Turn the thread tension dial 4 until see the thread dial shaft
3 by feeding the thread tension plate assy. 5 to the left side.
3. Remove the screw 2, and then remove the adjusting screw spring plate 6
from the thread tension plate assy. 5.
4. Remove the thread tension adjusting screw 7, and then remove the thread
tension adjusting gear 8 from the thread tension plate assy. 5.
5. Remove the spring , washer 9, tension disc washer 0, thread release
plate A, washer B, tension disc B C, and then tension disc A D in this
order from the thread tension holder A assy. 2.
A
2
D
C
B
0
9
S01
1
43
1
5
6
8
7
2
2
5
S01
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