Question about Sewing Machines
SOURCE: white model 1521 manual
go to the white website & email them from the contact us section. they'll email you back w/ PDF version of manual. they did that for me. goodluck!
Posted on Dec 16, 2008
SOURCE: step motor error
I am working on a 6003Q right now with this exact problem. The shuddering sound is the stepper motor working, but hitting the movement limit stop. The reason it keeps trying to move is that the sensor has failed. In the case of the machine I am working on, it is the zig-zag stepper motor position sensor that has failed. Elna does not sell the sensor separately, it comes complete with stepper motor, mounting frame, and cable, which is a shame because it is approx. $70 dealer cost for the assembly. The sensor is nothing more than an LED as a "sender" with a corresponding "receiver". There is a blade on the stepper motor drive gear that passes between the two and breaks the beam signaling that the "home" position has been reached. Unfortunately, the sender-receiver pair are sealed in a plastic housing so they are not replaceable. The part number of the zig-zag stepper motor assembly is 395727-69.
Best of luck,
Posted on Jun 26, 2009
You have to thread the needles last.
1 - Take the threads out of both needles.
2 - Thread both loopers according to the diagram on your serger.
3 - Thread the needles.
If this fails, you need to bring it to a pro for service.
Posted on Feb 12, 2010
Tips for a great answer:
Jun 19, 2018 | Sewing Machines
Nov 09, 2017 | Sewing Machines
Jun 05, 2016 | White Sewing Sewing Machines
Jun 04, 2015 | Singer 57815 Mechanical Sewing Machine
Apr 03, 2014 | White Sewing Sew Cute SC20 Mechanical...
May 21, 2012 | White Sewing 1866 Mechanical Sewing...
Mar 05, 2011 | Brother XL-2230 Mechanical Sewing Machine
Feb 20, 2010 | White Sewing Sewing Machines
Nov 19, 2009 | Sewing Machines
167 people viewed this question
Usually answered in minutes!