Adjusting The Needle And Hook Timing; Adjusting The Clearance Between Needle And Hook Point - Brother HE-800A Instruction Manual

10. STANDARD ADJUSTMENTS
１０-２. Adjusting the needle and hook timing
3973Q
1. Set the sewing machine to the home position and then press the RESET key.
2. Loosen the two screws (2) of the rotary hook joint (1).
3. Turn the pulley in the regular direction of rotation (toward the front) so that the needle bar (3) just begins to rise from
its lowest position.
4. Insert the "2" part of the gauge (4) between the needle plate (5) and the lower edge of the needle bar (3), and then
align the rotary hook point (6) with the center of the needle when the needle bar contacts the gauge.
* Different gauges are used for each of the two specifications -2 and -3, so make sure that the gauge being used matches the
specifications and application for the sewing machine being adjusted.
１０-３. Adjusting the clearance between needle and hook point
2839Q
1. Set the sewing machine to the home position and then press the RESET key.
2. Loosen the screws (3) and move the rotary hook (4) forward or back until there is a clearance of 0.01 to 0.08 mm between
the needle (1) and the hook point (2).
73
0.01 - 0.08 mm
3974Q
Mark
2168Q
Note:
When installing the rotary hook joint, install using
the set screw so that the oil inlets in the rotary
hook and rotary hook joint (7) are aligned.
3975Q
HE-800A
Lowest
position
2837Q
3976Q