Clearance Between Needle And Rotary Hook Point - Brother PE770 Service Manual

Adjustment
[Adjustment standard]
The clearance between the needle and the outer rotary hook point (front and back) is 0.1mm or less.
[Adjustment procedure]
1. Remove the face plate assy..
2. Remove the presser foot, the needle plate B and the needle plate A, and then remove the inner rotary hook assy..
3. Attach the size 75/11 needle.
4. Loosen the pan head screw (washer, M3x18).
5. Turn the pulley by hand until the right edge of the needle aligns with the outer rotary hook point.
6. Turning the adjusting screw, adjust the clearance between the needle and the outer rotary hook point (front and
back) to 0.1mm or less.
7. Tighten the pan head screw (washer, M3x18). (tightening torque: 0.78 to 1.18N· m)
XE2395001
Size 75/11 needle
Back
Hook point
Pan head screw
(washer, M3x18)
Adjusting screw

Clearance between needle and rotary hook point

Front
0.1mm or less
Back
Box driver 6
Front
4 - 13