Model 6412 I cannot remember how to thread the bobbin so that I can fill the bobbin
SOURCE: threading the bobbin
Threading the bobbin - winding thread onto the bobbin.
Position the new empty bobbin onto the vertical bobbin rod next to the end wheel. Click the rod to the right to engage drive. Hold the outer end wheel with left hand, and rotate the inner wheel anticlockwise by about a 1/2 turn (it stops) this removes drive from the foot and needle mechanism.
From a spool of thread on the top, thread to a loop/post on the left on the top. Then back to the bobbin you want to wind. Thread through a hole from the inside-out. Hold the thread vertically above the bobbin while you depress the footswitch to start winding. Let go when it's turned a few times.
Move bobbin shaft left, and tighten end wheel after winding enough.
Fitting bobbin-
Move footplate towards you, insert bobbin in hole so that bobbin rotates anticlockwise when thread is pulled, then pull thread into the fine notch towards you. After this position thread away from you, and slide the footplate closed.
To start / load thread. Hold the end 3" of the thread through the needle behind the sewing foot. hand crank towards you to sew first stitch in air. This should retrieve the lower thread - which you can catch with a handy pair of scissors. Then pull both threads rearwards - ready to sew.
SOURCE: bobbin filling on Singer 626
The Singer 626 has a self-winding bobbin. You place the empty bobbin in the bobbin thingie (sorry for being so untechnical). On the left of the bobbin you will see a "lever" with a circular top on it (I think it is red-ish) Again, sorry for being so untechnical. Press the "lever" down. Thread your machine, thread the needle, wrap the excess thread from the needle around the knob that tightens the needle and holds it in place and press your foot down on the foot pedal. The bobbin will automatically wind as you hold the foot pedal down. Do not wind the thread onto the bobbin past the outer white line.
SOURCE: singer futura model 900 sewing machine
Recently had same problem. Underneath the bobbin area on the bottom of the machine is a small white plastic piece that resembles a fan. Singer calls this the bobbin cam actuator. It is usually cracked along the sleeve that fits over the metal pin, bar? This is the mechanism that lifts the bobbin when it is wound. When its broken it can't lift the bobbin to be wound properly.
SOURCE: I have a Singer Touch N Sew Model 636. The
I had a Golden Touch 'N Sew many years ago and as the machine aged and parts became worn, step 4 of this bobbin winding diagram started to become a problem and I had to sometimes try several times before the "tabs" would release. If they did not release, the machine "thought" it was still winding the bobbin and would not sew.
http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Singer_Sewing_Machine_Threading/singer_2001_touch_tronic_threading_diagram.htm
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