Brother PR-600II, Service Manual

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Needle bar change unit Main unit
Assembly
1
Change box assembly (Step 1)
1. Attach the C stop position dog
1
to the change camshaft
2
with the 2
screws
1
.
*Key point
• Align the change camshaft's end face (grooved) with the C
stop position dog's end face.
• Align the D-cut face 3 on the change camshaft with the screw
hole positioned 90-degrees to the right when the C stop
position dog is at the top.
2. Apply MOLYKOTE EM-30L to the 2 shaft holes
4
on the change box
assembly.
3. Attach the change camshaft assembly, thrust washer
5
, and change cam
6
to the change box assembly, and then secure the change cam with the 2
screws
2
.
*Key point
• Align the C stop position dog with the mark 7 on the change
cam.
Start movie clip (CD-ROM version only)
Apply MOLYKOTE EM-30L to the shaft holes on the
change box assembly. Size of a grain of
rice
1
Torque
0.78 – 1.18 N-m
2
Torque
1.18 – 1.57 N-m
5
6
2
7
1
4
2
1 3
Set Screw, Socket (CP)
M3X4
Set Screw, Socket (CP)
M5X6