Main unit
4
Removal of Needle-presser module
1. Remove the screw 1.
2. Remove the 2 screws 2, and then remove the 2 presser plates 1.
3. Remove the needle-presser module 2 from the arm bed.
5
Removal of Plate spring
1. Remove the adjusting screw 1.
2. Remove the 2 screws 1, and then remove the plate spring 2.
Needle bar, presser mechanism / Upper shaft mechanism
1
2
1
2
1
2
1
1
2 - 31