Upper Knife Plate Assy - Brother SB3734T Service Manual

Disassembly
7

Upper knife plate assy

1. Remove the stopper screw to remove the upper knife link from the feed eccentric wheel.
2. Remove the screw (set screw, socket (CP) M4x4) to pull out the driving lever arm shaft.
3. Remove the retaining ring E5 from the driving lever arm shaft.
4. Remove the upper knife plate assy from the upper knife adjusting shaft.
5. Remove the upper knife link from the upper knife plate assy.
Feed eccentric
wheel
Stopper screw
Set Screw, Socket (CP) M4X4
Upper knife adjusting shaft
Upper knife plate assy
<Back side>
Upper blade / Lower blade / Looper
Upper knife link
Driving lever arm shaft
Fig. 2-7
2 - 31
Set screw, socket
(CP) M4x4
Upper knife link
Retaining ring E5
Set screw, socket
(CP) M4x4