Adjusting The Gimp Tension - Brother RH-981A Service Manual

4. ADJUSTMENT

4-23-4. Adjusting the gimp tension

When the looper base rotates and the gimp (1) is pulled, the gimp tension at the side of the spool stand should be
stronger than that close to throat plate, regarding gimp thread guide J (2) as the center.
During sewing, on the contrary, the tension should be weak so that the gimp can be sewn under the stitches.
3820Q
1. During sewing, gimp thread take-up guide J (3) moves toward the front in accordance with the movement of the
feed bracket, and the gimp thread release plate (4) releases the thread tension disc (5).
2. After sewing is completed, the feed bracket moves to the home position to trim the gimp (1), gimp thread take-up
guide J (3) pushes the gimp thread release plate (4), and the thread tension disc (5) is closed.
71
RH-981A
3819Q
3821Q