CONTENTS
WHAT TO DO WHEN............................................................................................... 1-2
SERVICE ACCESS
Face plate .............................................................................................................3
Belt cover ..............................................................................................................3
Bed base plate ......................................................................................................3
Front cover ............................................................................................................4
Rear cover .............................................................................................................5
MECHANICAL ADJUSTMENT
Upper thread tension dial .......................................................................................6
Bobbin thread tension ............................................................................................7
Presser bar height and alignment...........................................................................8
Needle swing .........................................................................................................9
Needle drop.........................................................................................................10
Height of feed dog ...............................................................................................11
Clearance between needle and hook (No.1).........................................................12
Clearance between needle and hook (No.2).........................................................13
Needle bar height ................................................................................................14
Hook timing .........................................................................................................15
Feed balance on stretch stitch..............................................................................16
Buttonhole feed balance.......................................................................................17
Bar-tack feed of buttonhole ..................................................................................18
Disengagement of cam follower ...........................................................................19
Buttonhole function ...............................................................................................20
Motor belt tension ................................................................................................21
WIRING ......................................................................................................................22
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