Brother PR-600II, Service Manual

Page: 168 / 333

3 - 70
Needle thread unit Main unit
2
Rack assembly and hook holder link attachment
1. Attach the hook holder link
1
to the rack assembly's shaft, and then attach
the retaining ring E3.
2. Apply MOLYKOTE EM-30L to the gear face
2
and the connecting face
on the rack assembly, and the hook holder shaft attachment hole
3
on the
hook holder link.
3. Attach the rack assembly to the base plate assembly's 2 shafts, and then
attach the 2 retaining rings E4.
4. Attach the needle thread sensor assembly
4
to the base plate assembly
with the 2 screws
1
.
Apply MOLYKOTE EM-30L to the gear face and the
connecting face on the rack assembly, and the hook
holder shaft attachment hole on the hook holder link.
Size of a grain of
rice
1
Torque
0.59 – 0.78 N-m
2
1
Retaining rings E4
1 3
4
Screw, Pan (S/P washer)
M3X6
3
Hook assembly
1. Attach the bush
2
to the hook holder axis B
1
with the screw
1
.
*Key point
• Temporarily tighten the screw 1 first. Firmly tighten it after
completing 4 - 28 "Needle threader adjustment (right/left)".
2. Attach the set collar assembly
3
to the base plate assembly.
*Key point
• Thread the set collar assembly through the slot on the base
plate, and turn it 90 degrees.
3. Thread the hook holder axis B assembly through the hole
4
on the hook
holder link, the groove on the base plate assembly, the set collar assembly,
and the spring
, and then attach the hook holder assembly
5
to the
hook holder axis B assembly and the set collar assembly's axis.
4. Attach the cap
6
to the tip of the slot on the base plate assembly.
Start movie clip (CD-ROM version only)
1
Torque
0.59 – 0.78 N-m
S56
1
2
1
4
6
3
5
S56
S56
Set Screw, Socket (CP)
M3X3
HOOK HOLDER SPRING
XC7375***
3.5
5.5