Feed Mechanism; Differential Adjusting Plate - Brother SB3734T Service Manual

Disassembly
1

Differential adjusting plate

1. Remove the screw (screw, bind M4x6) to remove the differential adjusting lever.
2. Remove the screw (set screw, socket (CP) M4x4) to pull out the upper knife link shaft from the arm bed
and the differential adjusting plate. Remove the retaining ring E4 from the upper knife link shaft.
*Assembling note
• Push the upper knife link shaft, and then tighten the screw.
3. Remove the retaining ring E3 to remove the washer plain M4 and the wave washer from the adjusting
link shaft.
4. Remove the differential adjusting link and the differential lever link from the shaft of differential adjusting
lever and the adjusting link shaft.
5. Remove the retaining ring E4 to remove the wave washer, the differential lever link and the differential
adjusting link from the shaft of differential adjusting plate.
Screw, Bind M4X6
Set Screw, Socket (CP) M4X4
Retaining ring E3
Retaining ring E4
Wave washer
Upper knife link shaft
Differential adjusting
plate
Retaining ring E4

Feed mechanism

Differential adjusting lever
Wave washer
Set screw, socket
Washer plain M4
(CP) M4x4
Shaft
Differential adjusting link
Fig. 2-1
2 - 36
Screw, bind M4x6
Adjusting link
shaft
Shaft
Differential lever
link
Differential adjusting
lever
Arm bed