SERVICE ACCESS
FACE COVER ................................................................................................................... 1
BELT COVER ................................................................................................................... 1
BASE PLATE .................................................................................................................... 2
FRONT COVER ................................................................................................................ 3
REAR COVER .................................................................................................................. 4
MECHANICAL ADJUSTMENT
NEEDLE THREAD TENSION ........................................................................................... 5
BOBBIN TENSION ............................................................................................................ 6
PRESSER BAR HEIGHT AND ALIGNMENT ................................................................... 7
NEEDLE SWING ............................................................................................................... 8
NEEDLE DROP ................................................................................................................ 9
CLEARANCE BETWEEN NEEDLE AND HOOK
ADJUSTMENT METHOD NO.1 ................................................................................ 10
ADJUSTMENT METHOD NO.2 ................................................................................ 11
FEED DOG HEIGHT ....................................................................................................... 12
NEEDLE BAR HEIGHT ................................................................................................... 13
NEEDLE TIMING TO SHUTTLE ..................................................................................... 14
DISTPRTED PATTERN .................................................................................................. 15
BUTTONHOLE FEED BALANCE ................................................................................... 16
BARTACK FEED OF BUTTONHOLE ............................................................................. 17
BUTTONHOLE FUNCTION ............................................................................................ 18
DISENGAGEMENT OF CAM FOLLOWER .................................................................... 19
MOTOR BELT TENSION ................................................................................................ 20
WIRING ........................................................................................................................... 21
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