Baby Lock BLDY Service Manual page 5

Removal of Thread drive unit assy ..................................................................................................2 - 34
Removal of Needle-presser module .................................................................................................2 - 36
Assembly
LED lamp / Upper driving mechanism .............................................................2 - 37
Lubrication .......................................................................................................................................2 - 38
Attachment of Needle-presser module ............................................................................................2 - 39
Attachment of Thread drive unit assy ..............................................................................................2 - 40
Attachment of LED lamp holder R assy ..........................................................................................2 - 42
Attachment of Laser module assy ....................................................................................................2 - 43
Attachment of Upper shaft assy .......................................................................................................2 - 44
Attachment of Upper shaft cover .....................................................................................................2 - 45
Attachment of Tension pulley assy ..................................................................................................2 - 46
Lower driving mechanism ................................................................................2 - 47
Lubrication .......................................................................................................................................2 - 48
Attachment of Lower shaft A assy ..................................................................................................2 - 49
Attachment of Thread cutter module, Feed module and Drop unit assy .........................................2 - 50
Attachment of Side feed assy ...........................................................................................................2 - 51
Needle threading mechanism ..........................................................................2 - 52
Attachment of Thread unit assy .......................................................................................................2 - 53
Attachment of LED lamp holder L assy ..........................................................................................2 - 54
Electric parts and Main motor unit ...................................................................2 - 55
Attachment of Extension IF PCB assy ............................................................................................2 - 56
Attachment of Spiral tube ................................................................................................................2 - 57
Attachment of Power unit ................................................................................................................2 - 58
Attachment of Main motor assembly ...............................................................................................2 - 59
Attachment of Main PCB assy .........................................................................................................2 - 60
Main frame and covers ....................................................................................2 - 61
Attachment of Upper unit relay PCB assy .......................................................................................2 - 62
Attachment of LED PCB holder A/B ..............................................................................................2 - 63
Attachment of UW pen connector PCB assy, Connector holder assy and Knee lifter assembly ....2 - 64
Attachment of Base plate cover and Free arm plate ........................................................................2 - 65
Attachment of Rear cover assy ........................................................................................................2 - 66
Attachment of Front cover assy .......................................................................................................2 - 67
Attachment of Bobbin winder unit cover assy .................................................................................2 - 68
Attachment of Belt cover .................................................................................................................2 - 69
Attachment of Front thread guard cover and Face plate assy ..........................................................2 - 70
Attachment of Free arm front cover assy, Free arm cover and Needle plate B assy .......................2 - 71
Attachment of Accessory table assy and Top cover unit assy .........................................................2 - 72
3. Application of Disassembly/Assembly .............................................3 - 1
Disassembly
Main frame and covers ......................................................................................3 - 2
Disassembly of Accessory table assy ................................................................................................3 - 3
Disassembly of Needle plate B assy ..................................................................................................3 - 3
Disassembly of Face plate assy .........................................................................................................3 - 4
Disassembly of Belt cover assy .........................................................................................................3 - 5
Disassembly of Belt cover lower assy ...............................................................................................3 - 5
Disassembly of Front cover assy .......................................................................................................3 - 6
Removal of VR PCB assy, SV keytop assy, Threader switch PCB assy and Threader button ....3 - 6
Removal of Threader switch PCB assy, SS PCB assy and Buttons ..............................................3 - 7
Removal of Lead wire assy main-panel and Speaker assy ............................................................3 - 8
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