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.
• Fully tighten the screw after performing
Base holder assy
Set Screw, Socket (FT) M4X4
Hex wrench 2.0 mm
11.Set the thread take-up lever to the needle bar crank rod assy, and secure it with the screw (screw, flat
• The screw is reverse threaded.
Thread take-up lever
Bobbin winder, Upper shaft, Needle-Presser module
"4 - 14 Needle bar
Set screw, socket (FT) M4X4
Needle bar crank rod assy
Screw, flat SM3.57-40X7 L
3 - 34
Needle bar block
Needle bar assy N
Needle clamp screw