Needle-Presser Module Attachment - Brother PE770 Service Manual

Main unit
2

Needle-presser module attachment

1. Attach the retaining ring E5 to the shaft 1.
2. Insert the shaft 1 into the shaft hole on the left side of the needle presser
module 2.
*Key point
• Insert the shorter end of the shaft 1 from the reataining ring
(E5) into the shaft hole on the needle presser module 2.
3. Insert the shaft 1 into the needle presser module 2, and then attach the
presser plate A 3 with the 2 screws 1.
4. Attach the presser plate B 4 with the 2 screws 1.
5. Tighten the screw 2 temporarily. (Fully tighten the screw after performing
4-11 Needle clearance adjustment.)
1
2
3
Upper shaft pulley attachment
1. Align the base line on the rotation shutter A (on the same surface as the
upper shaft B D cut) and the base line on the upper shaft pulley C, and
attach the upper shaft pulley 1 to the upper shaft assy. 2.
2. Attach retaining ring E6.
3 - 4
Needle bar, presser mechanism / upper shaft mechanism
Taptite, Bind S
M4X10
Screw, Pan (S/P washer)
M3X20A
3
Torque
1.47 — 1.98 N·m
Torque
0.78 — 1.18 N·m
B
2
1 Retaining ring E5
1
2
C
2
Retaining ring E6 1
4
A