Plate spring attachment
1. Attach the plate spring 1 from the front of the arm bed using the screws
2. Attach the plate spring 1 from the back of the arm bed using the adjusting
• Tighten adjusting screw 2 so that the screw threads are
Wire assy. attachment (lifter assy.)
1. Insert the fitting 1 (on the spring side) on the end of the wire assy. into the
wire holder 2 on the lifter assy., and attach retaining ring E4.
2. Attach the hook 3 on the end of the wire assy. to the lifter assy. shaft, and
attach retaining ring E3.
Needle bar, presser mechanism / upper shaft mechanism
1.18 – 1.57 N
Retaining ring E4
3 - 3