Brother Innov-is NV4000D, Service Manual

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Module Needle-presser module
12
Thread take-up lever assembly attachment
1. Apply a bead of MOLYKOTE EM-30L to the 2 calking shafts of the
needle bar crank
1
.
2. Apply a bead of MOLYKOTE EM-30L to the calking shaft of the thread
take-up lever assembly
2
.
3. Insert the needle bar crank
3
rod (end with the larger diameter) into the
calking shaft (longer) of the needle bar crank
1
.
4. Apply a bead of MOLYKOTE EM-30L to the screw attachment face of the
needle bar crack
1
(tip of the shorter calking shaft).
5. Insert the calking shaft (longer) of the needle bar crank
3
into the thread
take-up counter weight
4
.
*Key point
• Align the D-cut face of the needle bar crank calking shaft with
the screw hole on the thread take-up counter weight.
6. Fully tighten the 2 screws
1
temporarily attached to the thread take-up
counter weight
4
.
7. Insert the calking shaft of the thread take-up lever assembly
2
into the
shaft hole on the thread take-up lever link
5
.
8. Insert the calking shaft (shorter) of the needle bar crank
1
into the shaft
hole on the thread take-up lever assembly
2
, and then tighten the screw
2
.
*Key point
• The screw
2
has a reverse helical flute thread.
Start movie clip (CD-ROM version only)
Apply MOLYKOTE EM-30L to the 2 calking shafts of
the needle bar crank.
Bead
Apply MOLYKOTE EM-30L to the calking shaft of the
thread take-up lever assembly.
Bead
Apply MOLYKOTE EM-30L to the screw attachment face
of the needle bar crack (tip of the shorter calking shaft).
Bead
1
Torque
1.37 – 1.77 N
·
m
2
Torque
1.18 – 1.57 N
·
m
3
3
1 2
4
1
5
2
Set Screw, Socket (FT)
M5X5
Color; Black
Screw, Flat
SM3.57-40X7 L
Color; Black