Brother CE-8080PRW, Service Manual

Page: 37 / 196

2 - 22
Basics of Assembly Needle bar, presser mechanism / Upper shaft mechanism
2
Attachment of Upper shaft assy
1. Pass the T belt 420-5GT-6 (timing belt)
2
and timing belt 372-2GT-6
(motor belt)
3
to the upper shaft assy.
1
.
2. Set the thread take-up counter weight
5
to the needle bar crank rod assy.
4
.
3. Set the upper shaft bushing
6
to the positioning part of the rear cover
assy..
4. Set the 2 upper shaft bearing pressers
78
to the rear cover assy. with the
4 screws
1
.
*Key point
• Check that the bobbin winder assy.
9
is on the left side.
• Attach the left upper shaft bearing presser 7 so that the
projecting part of
7
is positioned at the upper right. And attach
the right upper shaft bearing presser 8 so that the projecting
part of
8
is positioned at the lower shaft.
5. Align the D-cut face of the needle bar crank rod assy.
4
with the screw
hole on the thread take-up counter weight
5
, and tighten the screw
2
.
→
Refer to 3 - 63 "Assembly of Upper shaft assy".
Apply OILER to the matching section of the upper shaft
and the upper shaft bushing. 1 - 2 drops
XZ0206***
1
Torque
1.18 – 1.57 N·m
2
Torque
1.18 – 1.57 N·m
2
4
D-cut face
5
D-cut face
2
2
3 1
4 5
6
2
1
8 7
1
9
Giza Tite
M5X16
Set Screw, Socket (FT)
M5X5