[Description of changes : Change of the first tension shape]
With this change, the knob, spring, and mounting base are changed and first thread tension disk fix plate is removed. (There is interchangeability between old and new ASM parts). Please note that thid minor change does NOT affect the stitch quality of the machine.
[Serial numbers of the sewing machines subject to changeover] 5UDLC00134 and Up.
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