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Main parts
Main unit
Disassembly
21 Upper shaft assembly removal
1. Remove the screw 1.
2. Remove the 4 screws 2, and then remove the 2 upper shaft bearing
pressers 1.
3. Remove the upper shaft assembly 3 from the needle bar crank 2, and
then remove timing belt 420-5GT-6 4 and timing belt 372-2GT-6 5.
23 4 5
1 1 2 1
22 Needle-presser unit removal
1. Peel the label, and then remove the screw 1.
2. Remove the 2 screws 2, and then remove the needle-presser unit 1.
1
2
1
23 Plate spring removal
1. Remove the adjusting screw 1.
2. Remove the 2 screws 1, and then remove the adjusting plate 2 and the
plate spring 3.
1
213
1
2
3
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