Check the top of your machine for a diagram before you place your thread spool. Some machines have a small diagram on top that shows where the thread spool should go. [1] X Research source
Keep in mind that there are also pre-threaded bobbins available in craft stores if you do not wish to thread your own bobbins.
You should hear the bobbin pin click into place when you slide it over.
When your bobbin is full, you will be ready to start threading your machine.
The spool may be more stable if you place it so that the thread is coming from under the spool when you look down at it. If your machine has a diagram, then you can check it to see where the spool pin is located and which direction the thread should be going.
Make sure to bring the thread around the back side of the guide and towards the front where the “U” shaped area for your thread to go through next is located. There will likely be printed guidelines on the top of the machine diagramming how to work the thread through this area.
The upper half of your machine is now threaded and you just need to thread the lower half before you can use the machine.
The compartment cover should come off easily. If it does not, then check to make sure that this is actually the compartment. In some machines, the bobbin case will also have a small cover. Make sure to remove this as well to reveal the slot for your bobbin.
Make sure that you unwind enough thread to catch. A few inches is usually plenty, but unwind too little thread and the thread may not catch.
You should be able to pull on the tail of thread to the right and the thread should unwind fairly easily. Close the compartment when the bobbin is in place. Make sure to replace the bobbin case cover (if your machine has one) as well.
If the thread does not catch, then check the compartment to see if the thread is going in the right direction and make sure that the thread moves easily when you pull on it. If it does not, then it might be too full and you may need to unwind some of the thread.
