Lever A Spring Attachment - Brother PE770 Service Manual

Modules
14

Lever A spring attachment

1. Attach the spring
S09
S09
A decided hook form is the same.
15
Needle holder guide assy attachment
1. Apply a small amount of EPNOC AP(N)0 to the needle bar supporter assy
needle roller 1.
2. Attach the upper unit support plate 2 and the needle holder guide assy
3 to the needle bar supporter assy needle roller 1.
Apply EPNOC AP(N)0 to the upper unit holder
needle roller
1
16
Needle bar assembly
1. Attach the needle thread plate 1 to the needle block 2.
2. Attach the needle block 2 to the needle bar 3 using the screw 1.
*Key point
• With the needle bar groove facing forward, the screw 1 is on
the right side.
3. Attach the needle bar thread guide 4 to the needle bar 3 using the screw 2.
*Key point
• There should be no gap 5 on the right side of the needle bar
thread guide 4 and needle block 2.
• There should be a 0.2 mm — 0.5 mm gap on the left side of the
needle bar thread guide 4 and needle block 2.
Gap on right side of needle bar thread guide and
needle block
Gap on left side of needle bar thread guide and
needle block
1
2
3 - 48
Needle-presser module
to the lever AB assy 1 and the plate 2.
30.1
3.2
Screw
3X10
Needle Clamp Screw
Screw
SM2.38
SPRING
XC2461***
Small amount
XC8387***
Torque
0.78 — 1.18 N·m
None
0.2 mm —
0.5 mm
-
Torque
0.39 — 1.78 N·m
2
S09
1
1
3 2
2 3
2
4
1
3
0.2mm to
0.5mm
5
1
2