v
Attachment of Inner rotary hook bracket assy ................................................................................3 - 75
Attachment of F pulse motor ...........................................................................................................3 - 75
Attachment of FPM holder sub assy ................................................................................................3 - 76
Alignment of F gear teeth ................................................................................................................3 - 77
Attachment of Spring .......................................................................................................................3 - 77
Attachment of Feed dog ...................................................................................................................3 - 78
Attachment of Needle plate A assy ..................................................................................................3 - 78
Assembly of Needle plate A assy ................................................................................................3 - 78
Attachment of Inner rotary hook assy ..............................................................................................3 - 79
Needle-presser module ...................................................................................3 - 80
Attachment of Shaft bushing ...........................................................................................................3 - 81
Attachment of Lock nut ...................................................................................................................3 - 81
Attachment of Z pulse motor ...........................................................................................................3 - 81
Attachment of Rubber ......................................................................................................................3 - 82
Attachment of Z zigzag cam ............................................................................................................3 - 82
Attachment of Z zigzag lever assy ...................................................................................................3 - 83
Attachment of Thread release lever .................................................................................................3 - 84
Attachment of Presser bar ................................................................................................................3 - 84
Attachment of Presser foot lifter ......................................................................................................3 - 85
Attachment of PF switch assy ..........................................................................................................3 - 85
Attachment of Needle holder shaft A ..............................................................................................3 - 86
Attachment of Z zigzag adjusting nut ..............................................................................................3 - 86
Attachment of Threader hook assembly ..........................................................................................3 - 87
Attachment of Needle bar supporter assy ........................................................................................3 - 87
Attachment of Shaft assy .................................................................................................................3 - 88
Attachment of Needle bar assy. N ...................................................................................................3 - 89
Attachment of Needle bar crank rod assy ........................................................................................3 - 90
Attachment of Thread take-up lever link .........................................................................................3 - 90
Attachment of BH switch assy .........................................................................................................3 - 91
Attachment of Lead wire assy: ground ............................................................................................3 - 91
Attachment of Thread slider guide ..................................................................................................3 - 91
Attachment of Presser feed holder assy ...........................................................................................3 - 92
4. Adjustment ..........................................................................................4 - 1
Starting test mode/Starting and stopping operation ...........................................4 - 2
Timing belt tension .............................................................................................4 - 4
Motor belt tension ..............................................................................................4 - 5
Upper thread tension .........................................................................................4 - 6
Left base line needle drop .................................................................................4 - 7
Rotary hook unit position ...................................................................................4 - 8
Needle clearance left/right .................................................................................4 - 9
Needle bar rising ..............................................................................................4 - 10
Needle bar height ............................................................................................4 - 11
Clearance between needle and rotary hook point ...........................................4 - 12
Needle threader ...............................................................................................4 - 13
Presser bar height and parallelism ..................................................................4 - 14
Feed forward/backward ...................................................................................4 - 15
Bobbin winder ..................................................................................................4 - 16
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