CONTENTS
LOCATE AND IDENTIFY THE PARTS ......................................................................... 1
WHAT TO DO WHEN .................................................................................................. 2-4
THREADING OF MACHINE ....................................................................................... 5-6
SERVICE ACCESS
FACE COVER ....................................................................................................... 7
TOP COVER......................................................................................................... 7
BASE PLATE ........................................................................................................ 8
BED COVER......................................................................................................... 8
BELT COVER ....................................................................................................... 9
FREE ARM COVER ............................................................................................. 9
FRONT COVER.................................................................................................... 10
REAR PANEL ....................................................................................................... 11
MECHANICAL ADJUSTMENT
TOP TENSION...................................................................................................... 12
PRESSER BAR HEIGHT AND ALIGNMENT ....................................................... 13
NEEDLE SWING .................................................................................................. 14
STRAIGHT STITCHING .................................................................................. 15-16
DISTRIBUTION OF NEEDLE SWING............................................................. 17-18
STRETCH STITCH BALANCE ........................................................................ 19-20
FEED DOG HEIGHT
................................................................................................ 21
NEEDLE BAR HEIGHT ........................................................................................ 22
NEEDLE TO HOOK TIMING................................................................................. 23
NEEDLE CLEARANCE TO HOOK ....................................................................... 24
BACKLASH (LOWER SHAFT GEAR) .................................................................. 25
BUTTONHOLE STITCH BALANCE ................................................................ 26-27
NEEDLE POSITION ........................................................................................ 28-29
ZERO FEEDING.............................................................................................. 30-31
BASIC NEEDLE POSITION ................................................................................. 32
BUTTONHOLE FUNCTION (1) ............................................................................ 33
BUTTONHOLE FUNCTION (2) ............................................................................ 34
REPLACEMENT AND ADJUSTMENT OF NEEDLE THREADER PLATE ........... 35
MOTOR BELT TENSION ...................................................................................... 36
OILING.......................................................................................................................... 37
WIRING OF TERMINAL BLOCK .................................................................................. 38
SPECIAL TOOLS REQUIRED ...................................................................................... 39
PARTS LIST............................................................................................................. 40-61
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