3 - 42
Upper shaft unit
Main unit
Assembly
Assembly
8 Thread take-up driving lever final assembly attachment
1. Attach the thread take-up driving lever final assembly 1 to the arm bed
with the 2 screws 1.
*Key point
• Align the roller 2 with the groove 3 on the thread take-up
cam.
• Press the bottom of the thread take-up driving lever final
assembly against the arm bed, and then secure them with the
2 screws 1.
1
Torque
1.57 — 1.96 N-m
1
3
2
1
Screw, Bind
M5X12
9 Presser foot vertical base final assembly
1. Attach the presser foot cushion base 2 to the presser foot vertical base 1
with the screw 1.
2. Thread the presser foot vertical bush 3 through the presser foot vertical
base assembly, and then tighten the screw 2.
3. Attach the presser foot vertical pin 4 to the presser foot vertical base
assembly, and tighten the screw 3.
*Key point
• Align the presser foot vertical pin with the end face 5 of the
presser foot vertical base.
1
Torque
0.78 — 1.18 N-m
2
Torque
0.59 — 0.78 N-m
3
Torque
1.37 — 1.57 N-m
1 12
23
3 45
Screw, Pan
M3X5
Screw, Truss
M2.6X3
Set Screw, Socket (CP
M4X4