CONTENTS
LOCATE AND iDENTiFY THE PARTS .................................................................
WiND THE BOBBIN ..............................................................................................
PREPAREYOURTOPTHREAD ..........................................................................
WHAT TO DO WHEN ............................................................................................
SERVICE ACCESS
FACE COVER ......................................................................................
BELT COVER .......................................................................................
BASE PLATE ........................................................................................
FRONT COVER ....................................................................................
REAR COVER ......................................................................................
MECHANICAL ADJUSTMENT
NEEDLE THREAD TENSION ...............................................................
BOBBIN TENSION ...............................................................................
PRESSER BAR HEIGHT AND ALIGNMENT .......................................
NEEDLE SWING ..................................................................................
NEEDLE DROP ....................................................................................
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.l) ......................
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2) ......................
FEED DOG HEIGHT ............................................................................
NEEDLE BAR HEIGHT ........................................................................
NEEDLE TIMING TO SHUTTLE ..........................................................
BUTTONHOLE FEED BALANCE .........................................................
DISTORTED PATTERN .......................................................................
BARTACK FEED OF BUTTONHOLE ...................................................
DISENGAGEMENT OF CAM FOLLOWER ..........................................
BUTTUNHOLE FUNCTION ..................................................................
MOTOR BELT TENSION .....................................................................
TO REPLACE NEEDLE THREADER PLATE ......................................
WiRiNG ..............................................................................................................
OiLiNG ..............................................................................................................
SPECIAL TOOLS REQUIRED ..............................................................................
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V1.0
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