Step-1. Load the upper thread into the upper thread bracket
Step-2. Pass the upper thread through the alignment ring in the middle of the upper thread bracket and the tensioner
Step-3. Clamp the upper thread between the two iron pieces of the thread clamp
Step-4. Place the alignment wire on the right side of the upper thread take-up lever
Step-5. Pass the upper thread from right to left through the take-up bar hole
Step-6. Pass the upper thread from top to bottom through the alignment ring on the left
side of the take-up lever
Step-7. Pass the upper thread from top to bottom through the alignment ring on the
needle bar
Step-8. Needle: Pass the upper thread through the needle hole from left to right