Brother CS8000 Series, Service Manual

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Upper shaft mechanism Main unit
9
NP PCB assy. attachment
1. Attach the NP PCB assy.
1
to the arm bed using screws
1
(two).
1
Torque
0.57 - 0.78 N-m
1
1
Taptite, Bind B
M3X10
Color; Gold
10
Upper shaft assy. assembly
1. Attach the pulley
1
to the upper shaft assy.
*Key point
• Be careful of the orientation for attaching the pulley.
2. Attach the timing shutter
2
to the upper shaft assy.
*Key point
• Align the timing shutter base line and the upper shaft assy. D
cut.
3. Move the upper shaft pulley
3
to the timing shutter
2
side and attach
retaining ring E6.
4. Attach the speed shutter
4
to the timing shutter
2
.
*Key point
• Face the side of the speed shutter
4
that is not shiny toward
the timing shutter.
5. Apply Molykote EM30L to the operating part of the T pulley clutch plate
5
.
Molykote EM30L Apply a thin coat to the
entire operating groove
1 5
Base line
With the D cut facing
forward
2
D cut Base line
3 4
Retaining ring E6
2
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