9-18.Adjusting The Gimp Length After Trimming; (-02, -52 Specifications); 9-19.Lower Thread Presser (-02, -52 Specifications) - Brother RH-981A Instruction Manual

9. STANDARD ADJUSTMENTS
<-02,-52>
The lower thread and gimp should be trimmed at the correct time after the work clamps rise at the feed home
position.
Thread trimming operation can be checked in steps while manual mode is active. (Refer to "7-8. Using manual
mode".)
9-18. Adjusting the gimp length after trimming

(-02, -52 specifications)

Approx. 4 mm
9-19. Lower thread presser (-02, -52 specifications)
67
3104Q
3105Q
Becomes shorter
Becomes longer
3106Q
RH-981A
1. The mechanism is adjusted so that the lower thread
and gimp are spread by the thread handler (1).
2. The movable knife driving cam (2) operates, and the
right movable knife (3) and left movable knife (4)
mesh and the thread is cut.
Adjust so that approximately 4 mm of the gimp thread
is coming out from the throat plate (1).
1. Loosen the screw (2) and move the gimp thread
guide J (3) in the direction of the arrow to adjust the
length.
The lower thread presser (1) operates at the same
time as upper thread trimming is carried out.
The end of the lower thread is securely held between
the lower thread presser (1) and the throat plate (2).