iii
Needle bar supporter assy. removal .............................................................................................2 - 38
Hook release plate removal ...........................................................................................................2 - 38
Threader hook assy. disassembly .................................................................................................2 - 38
Lever AB assy. removal .................................................................................................................2 - 38
Lever AB assy. disassembly ..........................................................................................................2 - 39
Shaft bushing A removal ...............................................................................................................2 - 39
Thread guide plate removal ..........................................................................................................2 - 39
Thread take-up assy. disassembly ................................................................................................2 - 39
Thread take-up counter weight removal .....................................................................................2 - 40
Presser foot lifter removal .............................................................................................................2 - 40
Z pulse motor removal ..................................................................................................................2 - 40
Z zigzag lever and thread releaser assy. removal .......................................................................2 - 40
Thread release lever assy. removal ..............................................................................................2 - 41
Remove the Z zigzag cam and shaft. ............................................................................................2 - 41
T cam removal ................................................................................................................................2 - 41
Presser bar removal .......................................................................................................................2 - 42
Thread take-up lever link removal ...............................................................................................2 - 42
Shaft bushing assembly removal ..................................................................................................2 - 42
Presser dial gear removal ..............................................................................................................2 - 43
Feed and bobbin module .................................................................................2 - 44
Needle plate A removal ..................................................................................................................2 - 45
Needle plate A disassembly ...........................................................................................................2 - 45
Feed dog removal ...........................................................................................................................2 - 45
FPM spring removal ......................................................................................................................2 - 45
F pulse motor assembly removal ..................................................................................................2 - 46
F pulse motor disassembly ............................................................................................................2 - 46
Inner rotary hook bracket assy. removal ....................................................................................2 - 46
Outer rotary hook assy. removal. .................................................................................................2 - 46
Feed bar spring removal ...............................................................................................................2 - 47
Feed bar removal ...........................................................................................................................2 - 47
Vertical adjusting screw removal .................................................................................................2 - 47
Feed supporting plate spring removal .........................................................................................2 - 47
Lower shaft B assy. removal .........................................................................................................2 - 48
Lower shaft B assy. disassembly ...................................................................................................2 - 48
Feed arm assy. removal .................................................................................................................2 - 49
Feed arm assy. disassembly ...........................................................................................................2 - 49
Stopper plate block assy. removal ................................................................................................2 - 49
Feed adjuster assembly removal ..................................................................................................2 - 50
Feed adjuster assembly disassembly ............................................................................................2 - 50
Bushing presser B removal ...........................................................................................................2 - 50
Drop assy. removal ........................................................................................................................2 - 51
Drop assy. disassembly ..................................................................................................................2 - 51
Drop knob removal ........................................................................................................................2 - 51
Thread cutter module .......................................................................................2 - 52
Thread cutter frame assy. removal ..............................................................................................2 - 53
Presser plate removal ....................................................................................................................2 - 53
Pile 4 x 8 removal ...........................................................................................................................2 - 53
Thread hook assy. disassembly .....................................................................................................2 - 54
Rubber removal .............................................................................................................................2 - 54
Thread cutter lever assy. removal ................................................................................................2 - 54
Thread cutter lever assy. disassembly ..........................................................................................2 - 55
Idle gear A and idle gear B removal ............................................................................................2 - 55
C pulse motor removal ..................................................................................................................2 - 55
3. Assembly .............................................................................................3 - 1
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