CONTENTS
WHAT TO DO WHEN ................................................................................................................................. 1 - 3
SERVICE ACCESS
FACE PLATE ........................................................................................................................................ 4
BELT COVER ....................................................................................................................................... 4
BED BASE PLATE ............................................................................................................................... 4
FRONT COVER ................................................................................................................................... 5
REAR COVER ...................................................................................................................................... 6
MECHANICAL ADJUSTMENT
UPPER THREAD TENSION DIAL ....................................................................................................... 7
BOBBIN THREAD TENSION ............................................................................................................... 8
PRESSER BAR HEIGHT AND ALIGNMENT ....................................................................................... 9
NEEDLE SWING ................................................................................................................................ 10
NEEDLE DROP .................................................................................................................................. 11
HEIGET OF FEED DOG .................................................................................................................... 12
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1) ................................................................... 13
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2) ................................................................... 14
NEEDLE BAR HEIGHT ...................................................................................................................... 15
HOOK TIMING ................................................................................................................................... 16
FEED BALANCE ON STRETCH STITCH .......................................................................................... 17
BUTTOHOLE FEED BALANCE ......................................................................................................... 18
BARTACK FEED OF BUTTONHOLE ................................................................................................. 19
DISENGAGEMENT OF CAM FOLLOWER (NO.1) ............................................................................ 20
NEEDLE MOVEMENT FOR STRAIGHT STITCH .............................................................................. 21
DESENGAGEMENT OF CAM FOLLOWER (NO.2) ................................................................... 22 - 23
BUTTONHOLE FUNCTION ............................................................................................................... 24
MOTOR BELT TENSION ................................................................................................................... 25
WIRING ......................................................................................................................................................... 26
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