Brother BES-1260BC Instruction Manual page 218

Chapter 10 Standard Adjustment
7. After timing adjustment the is finished for
each head, set the pulley to the stop
position (at 100˚ of the scale) and press the
STOP switch. "STEP" disappears from the
display, and the machine enters the
standby state.
STOP
The adjustment of the rotary hook is
completed and the timing is stored. The
rotary hook returns to the stop position
accordingly.
BES-960BC BES-1260BC 223