Brother NV4000D Service Manual page 208

Module
8
Lower shaft B assembly attachment
1. Attach bushing supporter A 1 to the base plate.
*Key point
• Engage the 2 positioning tabs on bushing supporter A with the
corresponding positioning holes on the base plate.
2. Apply 1 or 2 drops of Turbine oil #100 to lower shaft B 3 (section to be
inserted into bushing supporter B 4) of the lower shaft B assembly 2.
3. Insert lower shaft B 3 of the lower shaft B assembly 2 into bushing
supporter B 4.
*Key point
• Slightly lift the left end of the lower shaft B assembly when
inserting the shaft.
4. Place the lower shaft bushing 5 of the lower shaft B assembly 2 onto
bushing supporter A 1.
5. Attach bushing presser A 6 to the lower shaft bushing 5 with the 2
screws 1.
6. Attach the joint 7 to lower shaft B 3 with the 2 screws 2.
*Key point
• Align the screw hole on the joint with the D-cut face on lower
shaft B.
NOTE
• Rotate the joint to check the rotation torque.
• If the rotation torque is heavy, tap the bussing with a brass
bar.
Apply Turbine oil #100 to lower shaft B (section to be
inserted into bushing supporter B) of the lower shaft B
assembly.
Start movie clip (CD-ROM version only)
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Feed/rotary hook module
Screw, Bind
M4X16
Color; Silver
Set Screw, Socket (FT)
M5X5
Color; Black
1 - 2 drops
Torque
·
1.18 – 1.57 N m
Torque
·
1.18 – 1.57 N m
2
1 3
5
1
6 1
7
2
4