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Attachment Of Needle Holder Shaft A - Brother NV-10A Service Manual

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Modules
11

Attachment of Needle holder shaft A

1. Insert the needle holder shaft A 1 to the upper side hole of the needle bar
supporter assy., and then insert the shaft 2 into the needle bar supporter
assy., the needle holder shaft A 1 and the needle bar supporter assy.
*Key point
• Check that the groove 3 of the shaft 2 is the left side, when
set the needle bar supporter assy. as shown in the right figure.
2. Attach the plate 4 to the needle bar supporter assy. with the screw 1.
*Key point
• Check that the groove 3 of the shaft 2 engaged with the
notch part 5 of the plate 4.
3. Attach the screw 2 to the needle holder shaft A 1.
4. Attach the spring
S07
*Key point
• Attach the hook side of the spring to the plate 4.
Apply FBK OIL RO 100 to the needle holder shaft
A.
1
2
S07
12
Attachment of Z zigzag adjusting nut
1. Set the Z zigzag adjusting nut 1 to the needle bar supporter assy., and then
tighten the screw 1 temporarily.
*Key point
• Check that the side of the zigzag adjusting nut 1 with the
greatest eccentricity toward the top (see figure at the right).
• Fully tighten the screw after performing "4-8 Adjustment of
Three point needle drop".
Apply EPNOC AP (N) 0 to the zigzag adjusting nut
Z zigzag lever contact surface.
1
Needle-presser module
to the plate 4 and the needle bar supporter assy.
Screw, Bind
M3X5
Set Screw, Socket (CP)
M3X5
23
4
Bolt, Socket
M3X10
2
5
1-2 drops
XC8388***
Torque
0.78 – 1.18 N·m
Torque
0.59 – 0.78 N·m
SPRING
X50476***
Bead
XC8387***
Torque
0.78 – 1.18 N·m
1
3
1
4
2
4
S07
1
1
3 - 48

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