Application of Disassembly
1
Disassembly of Tension pulley assy
1. Remove the screw 1, and then remove the tension pulley holder 2 from
the tension pulley assy. 1.
2
Disassembly of Upper shaft assy
1. Remove the pulley 2 from the upper shaft assy. 1.
3
Removal of Plate spring
1. Remove the adjusting screw 1.
2. Remove the 2 screws 1, and then remove the adjusting plate 2 and the
plate spring 3.
3 - 20
Needle bar, presser mechanism / Upper shaft mechanism
1
1
1
1
3
2
1
2
2