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5.1. Upper Threading
The proper thread path from the cone of thread to the eye of the needle is critical in the operation of the
machine. Ensuring that the thread moves along the appropriate route will help prevent thread breaks as well
as increase efficiency and sew quality. Understanding the upper threading will also help in troubleshooting.
The following image displays the main components of the needle case and the upper threading system.
Threading the Machine for the First Time
When you first receive your machine, there will be thread in the system. The tops of the thread will most likely
be taped to the side of the thread tree. Remove the tape and untwist the threads. New cones of thread may
now be placed on the thread tree using the quick thread change method below.
Quick Thread Change
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