Outer Rotary Hook Attachment; Vertical Adjuster Screw Assembly Attachment; Feed Dog Attachment - Brother BC800 Service Manual

Main unit
12

Outer rotary hook attachment

1. Apply a light covering of EPNOC AP (N) 0 to the groove on the outer
rotary hook shaft 1.
2. Insert the outer rotary hook shaft 1 into the the spacer 4 and outer rotary
hook assembly 2 .
3. Place spacer 4 and then the washer 6 3 onto the outer rotary hook shaft
1.
4. Attach the outer rotary hook assembly 2 to the shaft supporter 5 with the
screw 1.
*Key point
• Rotate the lower shaft until the larger feed cam is at the rear
and the hole on the lower shaft is at the top, and attach the
outer rotary hook assembly so that the mark is at the front.
Start movie clip (CD-ROM version only)
Apply EPNOC AP (N) 0 to the groove on the outer
rotary hook shaft.
1
13

Vertical adjuster screw assembly attachment

1. Attach the vertical adjuster screw assembly 1.
2. Attach the M5 nut 2 to the vertical adjuster screw assembly 1.
3. Attach spring .
S04
S04
14

Feed dog attachment

1. Temporarily tighten the 2 screws 1 to attach the feed dog 2 to the feed
bar 1.
*Key point
• Tighten the screws after performing "4 - 19 Feed dog forward/
reverse and left/right adjustment"
1
3 - 32
Feed unit
Set Screw, Socket (CP)
M4X4
Color; Black
18.8
Screw, Bind
M3X6
Color; Silver
3
Light covering
XC8387***
Torque
·
0.78 – 1.18 N m
SPRING
XC4935***
Torque
·
0.78 – 1.18 N m
1
2
4
5
2
1
S04
1
1
1
2