Inner Rotary Hook Bracket Position - Brother PE770 Service Manual

Adjustment
[Adjustment standard]
The clearance (overlap) between the inner rotary hook point and the bracket spring must be 1.6 to 1.8mm.
[Adjustment procedure]
1. Remove the needle plate B.
2. Set the inner rotary hook in the outer rotary hook assy..
3. Loosen the bind screw (M3x8) of the inner rotary hook bracket assy..
4. Move the position of the inner rotary hook bracket assy. (forward and back), and adjust the clearance is in
standard ( 1.6 to 1.8mm).
5. Tighten the bind screw (M3x8) of the inner rotary hook bracket assy.. (Tightening torque: 0.78 to 1.18N· m)
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Inner rotary hook bracket position

Bind screw (M3x8)
1.6 - 1.8mm