Application of
Assembly
3 - 34
Bobbin winder, Upper shaft, Needle-Presser module
Application o
Assembly
Application of
Assembly
9. Tighten the needle clamp screw to the needle block of needle bar assy N.
10.Insert the needle bar assy N into the bottom side hole of base holder assy, the needle bar block of
needle bar crank rod assy and the upper side hole of base holder assy, and tighten the screw (set
screw, socket (FT) M4X4) temporarily.
*Key point
• Fully tighten the screw after performing “4 - 14 Needle bar height”.
11.Set the thread take-up lever to the needle bar crank rod assy, and secure it with the screw (screw, flat
SM3.57-40X7 L).
*Key point
• The screw is reverse threaded.
Set Screw, Socket (FT) M4X4
Hex wrench 2.0 mm
Base holder assy
Needle bar block
Needle bar assy N
Needle block
Needle clamp screw
Set screw, socket (FT) M4X4
Thread take-up lever
Screw, flat SM3.57-40X7 L
Needle bar crank rod assy