ii
Bobbin base assy. disassembly ......................................................................................................2 - 19
Upper shaft assy. removal .............................................................................................................2 - 20
Upper shaft assy. disassembly ......................................................................................................2 - 21
NP PCB assy. removal ...................................................................................................................2 - 21
Needle-presser module removal ...................................................................................................2 - 22
Thread hook assy. removal ...........................................................................................................2 - 22
Thread unit removal ......................................................................................................................2 - 22
Adjusting plate removal ................................................................................................................2 - 23
Bobbin winder cover assy. removal ..............................................................................................2 - 23
Bobbin winder cover assy. disassembly .......................................................................................2 - 24
Lower thread cutter removal ........................................................................................................2 - 24
Foot controller jack assy. removal ...............................................................................................2 - 24
Thread tension mechanism .............................................................................2 - 25
LED lamp removal. ........................................................................................................................2 - 26
Thread take up spring removal ....................................................................................................2 - 26
Damper holder assy. removal .......................................................................................................2 - 26
Damper holder assy. disassembly .................................................................................................2 - 27
Thread hook assy. removal ...........................................................................................................2 - 27
Thread hook assy. disassembly 1 ..................................................................................................2 - 28
Thread hook assy. disassembly 2 ..................................................................................................2 - 29
Cassette hold plate removal ..........................................................................................................2 - 29
Spring guide assy. removal ...........................................................................................................2 - 30
Spring guide assy. disassembly .....................................................................................................2 - 30
Presser switch removal ..................................................................................................................2 - 30
Thread release plate removal ........................................................................................................2 - 30
Thread tension dial removal .........................................................................................................2 - 31
Tension disk removal .....................................................................................................................2 - 32
Thread hook mechanism .................................................................................2 - 33
Thread take-up lever guide B removal ........................................................................................2 - 34
Thread take-up lever guide C removal ........................................................................................2 - 34
Thread guide base assy. removal ..................................................................................................2 - 35
Needle-presser module ...................................................................................2 - 36
BH switch assy. removal ................................................................................................................2 - 37
Presser feed holder assy. removal ................................................................................................2 - 37
Adjusting plate assy. removal .......................................................................................................2 - 37
Spring-Z removal ...........................................................................................................................2 - 37
Zigzag adjusting nut removal .......................................................................................................2 - 38
Lever A spring and spring removal .............................................................................................2 - 38
Lock nut removal ...........................................................................................................................2 - 38
Needle bar assy. removal ...............................................................................................................2 - 38
Needle bar assy. disassembly ........................................................................................................2 - 39
Needle holder shaft block removal ...............................................................................................2 - 39
Needle bar supporter assy. removal .............................................................................................2 - 40
Lever AB assy. removal .................................................................................................................2 - 40
Shaft bushing A removal ...............................................................................................................2 - 40
Thread guide plate removal ..........................................................................................................2 - 41
Thread take-up assy. disassembly ................................................................................................2 - 41
Thread take-up counter weight removal .....................................................................................2 - 41
Presser foot lifter removal .............................................................................................................2 - 41
Z pulse motor removal ..................................................................................................................2 - 42
Lever release plate assy. removal .................................................................................................2 - 42
Z zigzag lever and thread releaser assy. removal .......................................................................2 - 42
Thread release lever assy. removal ..............................................................................................2 - 42
Z zigzag cam and shaft removal ...................................................................................................2 - 43
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