Brother CS8000 Series Service Manual page 133

Modules
22
Needle bar assembly attachment
1. Apply a small amount of Epnoc Grease AP to the needle thread block 1.
2. Attach the needle bar 2 to the needle bar crank rod assy. needle bar block
3 and the needle thread block 1, and hand start screws 1 (two).
(Fully tighten after 4 - 9 "Needle bar height adjustment," and 4 - 23"Adjust
the needle thread block.")
*Key point
• With the unit shaft D cut 4 facing forward, the upper surface of the
needle block 5 and the base of the needle bar supporter assy. 6
should be adjusted to an approximately 10 mm separation.
• Adjust the space between the needle thread block 1 and the
needle bar block 3 to approximately 2 mm.
• When the needle thread block 1 is viewed from the front, it is
secured in a position turned slightly counterclockwise (see 4 -
23 "Adjust the needle thread block").
Lubricate the needle bar block needle bar crank
joint area on the needle bar block with Molykote
(Sewing Lube 90% + Molykote dispersion)
Apply Epnoc Grease AP to the pin sliding part of
the needle thread block.
Lubricate the needle bar supporter assy. needle
operating area with Sewing Lube.
Start movie clip (CD-ROM version only)
1
23
Lock nut attachment
1. Install screw 1 in the locknut 1.
*Key point
• Screw the screw 1 in approximately half its length.
2. Install 1 in the upper unit holder.
*Key point
• Tighten until the lock nut 1 hits the upper unit holder.
3. Tighten the lock nut 1.
Start movie clip (CD-ROM version only)
1
Needle-presser module
Set Screw, Socket (FT)
M4X4
Color; Black
Set Screw, Socket (CP)
M4X12
Color; Black
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1 – 2 drops
Approxima
tely 2 mm
between 1
Small amount
and 3
1 – 2 drops
Torque
Hand start
1
Torque
−
0.39 - 0.49 N m
3 1 1
2
4
Approximate
ly 10 mm
between 5
and 6
6 5
1
3 - 61