CONTENTS
WHAT TO DO WHEN ....................................................................................... 1 to 3
SERVICE ACCESS
FACE COVER ............................................................................................. 4
TOP COVER................................................................................................ 4
BELT COVER .............................................................................................. 5
BASE............................................................................................................ 6
BED COVER................................................................................................ 6
FRONT COVER........................................................................................... 7
MECHANICAL ADJUSTMENT
TOP TENSION............................................................................................. 8
PRESSER BAR HEIGHT AND ALIGNMENT............................................. 9
STRAIGHT STITCHING............................................................................ 10
NEEDLE SWING ....................................................................................... 11
NEEDLE POSITION .................................................................................. 12
DISTRIBUTION OF NEEDLE SWING...................................................... 13
ZIGZAG STOPPER ................................................................................... 14
NEEDLE CLEARANCE TO ROTARY HOOK .......................................... 15
BACKLASH (LOWER SHAFT GEAR) ...................................................... 16
NEEDLE BAR HEIGHT ............................................................................. 17
NEEDLE TO ROTARY HOOK TIMING .................................................... 18
FEED DOG HEIGHT ................................................................................. 19
STRETCH STITCH BALANCE ................................................................. 20
BUTTONHOLE STITCH BALANCE.......................................................... 21
ZERO FEEDING........................................................................................ 22
BUTTONHOLE FUNCTION (1) ................................................................ 23
BUTTONHOLE FUNCTION (2) ................................................................ 24
MOTOR BELT TENSION.......................................................................... 25
PART REMOVAL AND REPLACEMENT
THREADER PLATE ..................................................................................26
WIRING OF MACHINE SOCKET ...................................................................27