Question about Sewing Machines
If the worm gear is located on the bottom of machine that has link connected to the bobbins and shuttle case.Before you engage the two gear the worm gear and the helical gear besure to adjust the position of the needle holder at the lowest dead center position and the bobbins and shuttles case was hooked up properly with the needle no thread inside also unplug the ac source before doing this.Assuming all at zero time order,you can freeely move the shuttle case with the bobbins at the center of the needle because there are no link connection when you disengage
the two gear.After setting up all at rest gradually engage the two gear and tight the allen screw no motion at all linkage when doing this otherwise changes of set up will occurs you can't get the perfect time order.If all are set, manually by hand rotate handwheel gradually if there obtruction on motion of all parts,they should be freely move on the right rotation.if OK put thread on bobbins winder set to bobbins and upper threat top spool.Set the proper tension on both lower and upper thread acquired to fabric,try too hook up the lower tension manually, If ok sew cotton fabric as trial manually only no power supply yet
until you acquired normal sewing If no problem persist.Apply power source and continue trial If problem on timing again judt repeat sequence assure the perfect alignment and setting on lower dead center.
Posted on Mar 13, 2009
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