Change Box Assembly (Step 1) - Brother PR600 Service Manual

Main unit
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 grease 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 grease to the shaft holes
on the change box assembly.
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2
Needle bar change unit
Size of a grain of
Set Screw, Socket (CP)
M4X4 0.78 – 1.18 N-m
Color; Black
Set Screw, Socket (CP)
1.18 – 1.57 N-m
M5X6
Color; Black
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1
rice
2
Torque
Torque
2
3
4
5
6
7
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