Brother NV4000D Service Manual page 257

Module
30
Needle holder assembly attachment
1. Apply 1 or 2 drops of MOLYKOTE (sewing lubricant 90% + MOLYKOTE
EM-30L 10%) to the shaft of the needle bar block 2.
2. Insert the needle holder assembly 1 from the top of the unit holder.
3. Insert the shaft of the needle bar block 2 into the crank rod 3.
4. Apply 1 or 2 drops of Turbine oil #100 to the shaft 4.
5. Insert shaft A 4 into the shaft bushing 5 of the unit holder from the shaft
hole on the top of the needle holder assembly.
*Key point
• Insert the shaft from the end without a shaft hole.
6. Insert shaft C 6 into the shaft hole on the top of the needle holder
assembly, and pass it through the shaft hole on shaft A 4.
*Key point
• Insert shaft C from the end with a groove.
• Cross shaft A and shaft C .
7. Attach the plate 7 to the needle holder assembly with the screw 1.
*Key point
• Attach the U-shaped section of the plate to the groove on shaft
C.
8. Attach the screw 2 to the tip of shaft A 4.
Apply MOLYKOTE (sewing lubricant 90% +
MOLYKOTE EM-30L 10%) to the shaft of the needle
bar block.
Apply Turbine oil #100 to the shaft.
Start movie clip (CD-ROM version only)
1
2
Needle-presser module
Screw, Bind
M3X5
0.78 – 1.18 N
Color; Silver
Screw, Bind
M2X4
0.39 – 0.78 N
Color; Gold
1
1 - 2 drops
1 - 2 drops
Torque
·
m
Torque
·
m
3
2
4 5
6
1 7 2
3 - 125