Brother BC800, Service Manual

Page: 94 / 134

3 - 43
Needle-presser unit Main unit
Assembly
11
Needle bar assembly attachment
1. Insert the needle bar assembly
1
from the bottom of the needle holder
assembly, and then insert the needle bar block
2
and the needle thread
block
3
through the needle bar assembly and then through to the upper
hole.
*Key point
• Insert the needle bar block 2 and the needle thread block 3
so that the shaft of the needle bar block
2
is on the right side
and the tab of the needle thread block 3 is on the left side.
Start movie clip (CD-ROM version only)
2 3
1
11-1
Needle bar ASSY assembly
1. Attach the presser feed holder assembly
1
to the needle bar assembly
2
with the screw
1
.
*Key point
• The screw 1 should be on the right side when the groove on
the needle bar assembly
2
faces the front.
1
1
2
1
Needle Clamp Screw
Color; Black
12
Thread take-up lever link attachment
1. Insert the shaft
1
into the base holder
2
, and then align the screw
1
with
the trench on the base holder
2
, and tighten it temporarily.
2. Attach the thread take-up lever link
3
.
3. Apply a light covering of MOLYKOTE EM-30L to the circumference of
the shaft within 10 mm of the retaining ring.
4. Insert the spring washer
4
into the shaft
1
.
5. Attach the retaining ring (E5) to the groove on the shaft
1
.
Start movie clip (CD-ROM version only)
Apply MOLYKOTE EM-30L to the circumference of the
shaft within 10 mm of the retaining ring. Light covering
XC8385***
1
Torque
Hand tighten
1 3 4
Retaining ring E5
1
1
2
Screw, Pan (S/P washer)
M3X8DB
Color; Silver