¶ Introduction
Instructions to thread the Juki Lockstitch.
¶ Skills/Class Required
A membership or day pass is required to access Textiles. The following Shop Safety Class is required before using the Lockstitch sewing machines:
¶ Machine Reservations
The lockstitch sewing machines do not require a machine reservation and are available on a first-come first-serve basis.
¶ Before You Begin
Personal Protective Equipment (PPE):
• Sturdy, close-toed shoes must be worn at all times for traction and stability.
• Long hair, jewelry, and loose clothing must be tied back to prevent getting caught in moving parts.
For more information on shop safety visit Textiles under "Safety."
✓ Make sure the machine is turned off before threading the machine.
✓ Ensure that you are not wearing any dangling jewelry or loose clothing that could get caught in the machine.
✓ Keep your feet off the drive pedal[^1] as you perform this procedure.
¶ Time to complete
- 5 minutes.
¶ Tools Required
- Tweezers (optional)
- Scissors
¶ Materials Required
- Tweezers (optional)
- Scissors
¶ Previous Steps
¶ Threading the Lockstitch
There are two main ways to thread the lockstitch. If it is already threaded correctly, you can use the fast way. If it is not threaded, or threaded incorrectly, follow the diagram below.
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| Diagram adapted from the Juki Manual. |
- Thread guide. Thread back to front.
- Thread guide. Thread right to left and top to bottom.
- Tensions plates. Pass thread to the right and underneath the tension plates, making sure to get the thread between the plates. If you pull on the thread, there should be resistance.
- Take up spring and guide. Bring the thread up to catch it in the hook on the spring, then pull left and down to catch it under the hook on the machine.
- Thread guide. Bring the thread up through the thread guide. With a small amount of tension on the thread, pulling it right to left across the guide should cause it to pop in.
- Needle bar eye. Thread the end right to left through the hole.
- Thread guide. Bring the thread straight down through the guide. With a small amount of tension on the thread, pulling it left to right across the guide should cause it to pop in.
- Thread guide. Bring the thread behind the guide, then forward and left to catch the thread in the guide.
- Thread guide. Pass the end front to back through the hole.
- Needle eye. Pass the thread left to right through the needle eye.
¶ The Fast Way
- Unthread the needle.
- Cut the thread between the machine and the spool.
- Tie the end of the new spool of thread to the machine end of the old thread.
- Using the end of the old thread by the needle, pull the knot and new thread all the way through the machine.
- Cut the old thread off of the new thread.
- Thread the needle with the new thread.