Brother NV4000D Service Manual page 151

Main unit
9
Sub spool stand pin attachment
1. Attach the plate spring 1 to the sub spool pin holder 2 with the screw 1.
*Key point
• Engage the positioning tab on the sub spool pin holder with
the positioning hole on the plate spring.
2. Place the shaft hole on the sub spool pin holder 3 on the rear of the upper
cover.
3. Insert the shaft 4 into the hole on the sub spool pin holder 3 from the rear
of the upper cover, and attach these to the bushing.
4. Attach the sub spool pin holder assembly 2 with the 2 screws .
*Key point
• Tighten the screws 2 in the following order: 2-1 (temporarily
tighten), 2-2 (fully tighten), and 2-1 (fully tighten).
1
2
Bobbin winder unit
Screw, Bind
M3X3
0.79 – 1.18 N
Color; Silver
Taptite, Bind B
M3X8
0.59 – 0.79 N
Color; Gold
2
4
Torque
·
m
Torque
·
m
2-2
1
1
3
2
2-1
3 - 19