How to Thread a Sewing Machine Bobbin

Here you will learn how thread a bobbin using a bobbin winder device properly.
Tips on how to use your sewing machine for beginners.

Take a bobbin (metallic or plastic) and set it on the spindle of bobbin winder (as far as it goes).
Look! Any bobbin inner hole has a slot into. The wire spring of bobbin winder must pass through it.

Now you need to pull up from the body of a sewing machine a spindle for setting a coil.

Place the coil with thread on the spool pin.

Note: During winding a bobbin, the coil I recommend gently hold by hand upon top its edge. At a high winding speed, the coil can fly away from this pin.
Winding a bobbin

Pass thread from spool through left thread guide. The thread needs insert between discs of tensioner so as shown (crosswise).

Pass the thread end into hole a bobbin, as shown.

Take this thread end by hand and slide the bobbin together with pin to far right.

This oval part of bobbin winder device is needed for adjusting a level of the wound thread on the bobbin.
When the bobbin is wound around a sufficient number of threads, the device will automatically shut down.
Loosen this screw a little and set position of the oval so that the thread does not wind over the bobbin excessively. See also: How to thread a sewing machine.
Note: This should be done only if you want to reduce number of turns on the bobbin.
How to turn off work a sewing machine

With help of this handwheel, turn off work a sewing machine. Only the thread winding device will work.
Now all is ready for winding a bobbin.

To turn on the bobbin winder, it is most often necessary to press the flywheel towards the sewing machine body (or in the opposite direction).

After winding a few turns you can trim thread end from top of bobbin.
Never wind the bobbin by hand!

The thread winds should be laid evenly along a coil. In this case tension of the lower thread will always be even.
Note: Never wind the bobbin by hand. This can be cause of bad stitches. See more: Thread tension problems of sewing machines.

Now stitch line of your sewing machine will be smooth and beautiful.

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