Brother Innov-is NV4000D, Service Manual

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3 - 5
Needle-presser unit, needle threader unit, upper shaft unit Main unit
Assembly
4
Upper shaft assembly attachment
1. Apply 1 or 2 drops of Turbine Oil #100 to the upper shaft bushing
attachment section
1
, and then move the upper shaft bushing
2
to the
lubricated section.
2. Insert the fixed joint
3
into the upper shaft assembly
4
.
*Key point
• Be careful of the direction of fixed joint when inserting.
3. Attach the upper shaft assembly
5
to the arm bed.
*Key point
• Place the encoder
7
of the upper shaft assembly on the left
side of the arm rib 8 .
• Place the upper shaft bushing
2
of the upper shaft assembly
on the upper shaft bushing attachment section of the arm bed.
4. Attach bushing presser A
9
to the upper shaft bushing attachment section
of the arm bed with the screw
1
.
Start movie clip (CD-ROM version only)
Apply Turbine Oil #100 to the upper shaft bushing
attachment section.
1 - 2 drops
1
Torque
1.47 – 1.98 N
·
m
3 1
2 4
4 7 8
9
1
5
6
Screw holes toward the left side
Taptite, Bind S
M 4X10
Color; Gold