Feed Unit; Lower Shaft Bushing Attachment; Lower Shaft Assembly Attachment; Timing Pulley D Attachment - Brother BC800 Service Manual

Main unit
1

Lower shaft bushing attachment

1. Attach the lower shaft bushing 2 and bushing presser B 3 to the base
plate assembly 1 with the 3 screws 1.
1
2

Lower shaft assembly attachment

1. Temporarily tighten the 2 screws 1 to the set collar 1, and attach the set
collar to the lower shaft assembly 2.
*Key point
• Set the set collar with the machined surface facing out.
2. Insert the thrust washer 3 into the lower shaft assembly 2, and attach
them to the lower shaft bushing 4.
3. Insert the thrust washer 5 into the lower shaft assembly 2, and attach the
retaining ring (E6).
4. Push the lower shaft assembly 2 from the retaining ring side, move the set
collar 1 to the lower shaft bushing 4, and then secure them with the 2
screws 1.
Start movie clip (CD-ROM version only)
1
3

Timing pulley D attachment

1. Insert the upper shaft bushing 2 into the lower shaft assembly 1, and
attach the retaining ring (E6).
Insert the timing pulley D 3 into the lower shaft assembly 1, and secure
them with the 2 screws 1.
1

Feed unit

Taptite, Bind B
M3X6
0.39 – 0.78 N
Color; Gold
Set Screw, Socket (CP)
M4X4
0.78 – 1.18 N
Color; Black
Set Screw, Socket (CP)
M5X5
1.18 – 1.57 N
Color; Black
Torque
·
m
1
2
3 1
4
5
Retaining ring E6
Torque
·
m
1
Torque
·
m
2
1
2 3
1
2
3
Retaining ring E6
1
3 - 23