Brother Innov-is NV4000D, Service Manual

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Needle-presser module Module
Assembly
11
Thread take-up counter weight attachment
1. Temporarily attach the 4 screws
1
to the thread take-up counter weight
1
.
2. Attach the retaining ring (E8) to the groove on the unit shaft
2
, and then
insert the thrust washer
3
from the D-cut face of the unit shaft
2
.
3. Apply 1 or 2 drops of Turbine oil #100 to the unit shaft
2
and the shaft
hole on the shaft bushing
4
.
4. Insert the D-cut face of the unit shaft into the shaft hole on the shaft
bushing
4
.
5. Insert the thrust washer
3
and the thread take-up counter weight
1
from
the D-cut face of the unit shaft
2
.
6. Fully tighten the 2 screws
1
of the thread take-up counter weight
1
with
the D-cut face next to the unit shaft
2
retaining ring (E8) and the screw
hole face
5
of the thread take-up counter weight facing the front. (See the
illustration on the right.)
*Key point
• Tighten the 2 face-to-face screws
1
temporarily attached to
the center of the thread take-up counter weight.
Start movie clip (CD-ROM version only)
Apply Turbine oil #100 to the unit shaft. 1 - 2 drops
Apply Turbine oil #100 to the shaft hole on the shaft
bushing.
1 - 2 drops
1
Torque
1.37 – 1.77 N
·
m
3
1 1
1
2
3 4
Retaining ring E8
3 5
Retaining ring E8
2
1 1
Set Screw, Socket (FT)
M5X5
Color; Black