10
Selectthezigzagstitch .
Setthestitchwidthto“5.0”.
Theamountofascendingtraveloftheneedlebarfromitslowerpositiontothepositionwherethetipofthe
rotaryhookexactlymeetstherightsideoftheneedleshouldbe1.4to2.0mm.
1.Removethebedcover(Refertopage5).
2.Selectthezigzagstitch.
Setthestitchwidthto“5.0”.
Bringtheneedleatrightlowestneedleposition.
3.Removethesetscrewontheneedleplate,theneedleplateandthebobbinholder.
4.Loosenthehexagonalsocketscrewsonthelowershaftgear.
5.Turnthehandwheeltowardyoutoraisetheneedlebar1.7mmfromitsrightlowestposition.
6.Whileholdingthehandwheeltopreventtheneedlebarfrommoving,turnthelowershaftgearinthedirection
ofarrowuntilthetipoftherotaryhookexactlymeetstherightsideoftheneedle.
7. Tightenthehexagonalsocketscrewsonthelowershaftgear.
8.Attachthebobbinholder,needleplateandbedcover.
MECHANICAL ADJUSTMENT
ADJUSTMENT OF HOOK TIMING
Needle plate
Bobbinholder
Hexagonalsocketscrew
Lowershaftgear
Rightposition
Tipofhookmeetstherightsideoftheneedle
Lowest needle position
1.4 to 2.0 mm
Setscrew
Hexagonalsocketscrew