ELNA Transforma - Timing of Needle Bar Swing

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14. Timing of Needle Bar Swing
TheswingoftheneedlebariscorrectlytimedifwhentheStitchwidthleverissetat1‐4(Zig‐zagsewing,)the
needledoesnotmovesidewayswhileinthematerialandwhentheStitchlengthleverissetat"A"(Automatic
sewing)thefeeddogdoesnotmovethematerialwhiletheneedleisinthematerial.
Iftheaboverequirementsarenotmet,adjustasfollows:
Removeneedleandpresserfoot.
InstallCam“0"orthedoubleCam“101"suppliedwiththemachineasastandardaccessory.
Setstitchlengthregulatingleverat"A"(automaticsewing).
TheCamFollowerPinontheReversingLeverfollowsalong
thecontourofthetophalfofthedoubleCam.
WhiletheCamFollowerPinridesalongtheouterridgeofthe
CamthefeeddogwillmoveintheForwarddirection.
WhiletheCamFollowerPinridesalongtheinnervalleyof
theCamthefeeddogwillmoveintheReversedirection.
TheCamFollowerPinpivotstheReversingLeverwhichin
turnpivotstheFeedForktochangethedirectionoftheFeed
Dog.
TurnflywheelslowlytowardsyouuntiltheCamFollowerPin
ascendsoneoftheslopesontheupperportionofthedouble
cam.
Watchmovementoffeedforkontopoffeedcontrolshaft.
Whenmovementofthisfeedforkhasstopped①,donot
turnflywheelanyfurther.
AtthismomenttheCamFollowerPinhasjustreachedthe
ridgeofthecam.
Checktheheightofthefeeddogabovetheneedleplateand
recordmeasurement①.