13. TREADLE UNIT ASSEMBLY
SL-710A
94
4) Memorizing the maximum backward position
• Carry out the following procedure while pressing the treadle backward as far as it will go.
1. Check that “rr” is flashing in columns A and B (4) of the
display window.
2. Press the thread trimming key (2).
“F1” will flash in columns A and B (4) of the display
window.
5) Memorizing the modulation position when pressing the treadle forward
• Press the treadle forward until the depression force suddenly becomes heavier, and hold the
pedal in that position while carrying out the following procedure. (For treadle unit H)
• If the depression force of the pedal does not change suddenly when it is pressed forward, carry
out the following procedure with your foot removed from the pedal. (For treadle unit G)
1. Check that “F1” is flashing in columns A and B (4) of
the display window.
2. Press the thread trimming key (2).
“r1” will flash in columns A and B (4) of the display
window.
1850M
1851M
(4)
1852M
(4)
(2)
1853M
Press gently
Or in the
neutral position