Adjusting The Cutting Pressure; Adjusting The Meshing Amount - Brother RH-9820 Instruction Manual

9-25-2. Adjusting the cutting pressure

Adjust the cutting pressure to a suitable pressure so that the threads are trimmed cleanly.
NOTE:
Do not apply excessive pressure. Excessive pressure will cause the fixed knife and movable knife to become worn or damaged.
1. Push the thread trimmer arm (1) as far as it will go in the direction of the arrow [A].
2. Loosen the two screws (2).
3. With the thread trimmer arm (1) pushed as far as it will go, move the fixed knife setting bracket (6) along the guide groove in
the direction of arrow [B] to adjust so that the position where the tip of the fixed knife (3) and the movable knife (4) first start
touching is immediately above the mark (5).
4. Once adjustment is complete, securely tighten the two screws (2).

9-25-3. Adjusting the meshing amount

1. Turn the thread trimmer link lever (1) in the direction of the
arrow until it touches the screw (2).
2. Loosen the socket bolt (3).
3. Adjust the position of the thread trimmer arm (7) so that
the tip of the fixed knife (6) is directly above the index mark
(5) on the movable knife (4).
4. Once the adjustment is complete, securely tighten the
socket bolt (3).
NOTE:
When tightening the socket bolt (3), check that the thread
trimmer lever arm (8) and the thread trimmer arm (7) move
smoothly with no play.
If the meshing amount is too small, problems with the
lower thread nipper will occur and the thread will be pulled
out at the sewing start.
0522B
RH-9820
9. STANDARD ADJUSTMENTS
0521B
100