Brother B-500, Service Manual

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Modules Needle-presser module
16-1
Assembly of Needle bar assy.
1. Attach the needle thread plate
1
to the needle block
2
.
2. Attach the needle block
2
to the needle bar
3
with the screw
1
.
*Key point
• When the needle bar
3
groove facing forward, check that the
screw 1 is on the right side.
3. Attach the needle bar thread guide
4
to the needle bar
3
with the screw
2
.
*Key point
• Check that there should no gap
5
between the needle bar
thread guide 4 and the right side of the needle bar 2 .
• Check that there should be a 0.2 mm – 0.5 mm gap between
the needle bar thread guide 4 and the left side of the needle
bar
2
.
1
––
2
Torque
0.39 – 0.78 N·m
1
2
3 2
1 2 4
4
2
0.2 - 0.5mm
5
Needle Clamp Screw
Screw
SM2.38