Application of
Disassembly
3 - 20
Needle threading mechanism
Application o
Disassembly
Application of
Disassembly
1 Disassembly of Thread tension dial assembly
1. Release the hook to turn the thread tension stand in the direction of the arrow while pulling the hook,
and then align the three tabs of thread tension stand with the three notch parts of tension control holder
assy, and remove it from the tension control holder assy.
2. Remove the thread tension label from the tension control knob. And remove the screw (taptite, bind B
M3X10) to remove the tension control knob from the thread tension stand. And remove the tension
control stud to remove the tension control nut and the tension spring (X55630) from the thread tension
stand. And pull out the tension disc plate, the two tension discs, the thread tension disc presser and the
spring (X55821) from the thread tension stand.
3. Remove the retaining ring E4 to remove the upper tension control releaser from the shaft on tension
control holder assy.
Taptite, Bind B M3X10
Spring (X55821)
Tension spring (X55630)
Thread tension stand
Upper tension
control releaser
Retaining ring E4
Tension spring
(X55630)
Tension control nut
Straight
line part
Spring (X55821)
Hook part
Thread tension disc presser
Notch part
Tension discs
Tension disc plate
Tension control stud
Tension control knob
Thread tension label
Taptite, bind B M3X10
Tab
Tab
Tab
Notch part
Notch part
Notch part
Lock
Thread tension stand
Tension control holder assy
Hook