(A)
(B)
(H)
(G)
2–2.5 mm
2–2.5 mm
(H)
(K)
22
104 72 63-26
Replace and Adjust Thread Cutter Knife
Requirement
When thread cutter knife is at its end turning position, it should be 2–2.5 mm from the point (G) of the thread
cutter knife to the center of the needle drop position (H).
Removal and fi tting
• Remove the needle plate and base.
• Remove the feed dog.
• Remove the Fixed cutter knife.
• Remove the hinge screw (A) and thread cutter (B).
• Attach the new thread cutter knife and secure it with the hinge screw (A).
• Attach the fi xed cutter knife
• Adjust the position of the fi xed cutter knife
• Adjust the position of the thread cutter knife.
• Adjust the parallelism of the feed dog.