Singer Futura XL-550 Instruction Manual page 28

6. TWIN NEEDLE SAFETY
When using twin needles, press the twin needle safety button
regardless of the stitch you selected. Doing so will reduce
the stitch width automatically and save broken needles and
possible damage to your machine.
When the button is pressed, the LED indicator next to the
button is lit, indicating that Twin Needle Safety is activated.
When turning the Stitch Selection Dial, the machine now
automatically skips all stitches that are not suitable for twin
needle, and a beep will sound when selecting buttonhole
pattern with the direct selection button, indicating that
buttonholes cannot be sewn with twin needle.
Note: Always select the Twin Needle Safety prior to
selecting a pattern. This will preclude any possibility
of the twin needle breaking.
To disengage Twin Needle Safety and return the
machine to normal sewing mode, either press the Twin
Needle Safety button again or turn the machine off.
Twin Needle Safety is only active when the LED light
next to the Twin Needle button is lit.
7. THREAD CUTTING MODE
Press this button to activate Thread Cutting Mode. The
machine will automatically cut the top and bobbin thread every
time you stop sewing. When activated, the LED indicator next
to the button is lit.
Note: Twin needle safety and Thread cutting mode
cannot be enabled at the same time.
8. THREAD TENSION CONTROL BUTTON
Press - to decrease and + to increase thread tension. While
pressing the button, thread tension adjustment mode is
displayed on LCD screen.
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