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9-1-2022
APQS.com
Machine Operation
Repeat Steps 5–7 for each bobbin change.
You must hit the “bobbin reset” button every time you insert a new full bobbin, or the Low Bobbin Gauge
will not work.
The only time you need to repeat Steps 1–4 is when you change to a different type of bobbin or bobbin
thread. For example, if you only use pre-wound bobbins from one manufacturer exclusively, you’ll never
need to repeat Steps 1–4 to reset the initial “bobbin full” level, as long as you always replace the empty
bobbin with a full one. However, if you switch to a different pre-wound bobbin manufacturer, you will need
to start the process from the beginning to set the new “full level” for your new bobbin style.
Reminder:
Any time you change from one bobbin style or thread type to another, you must repeat Steps 1–4
to set the intial “bobbin full”level.
Important Notes:
The Low Bobbin Indicator does NOT stop the sewing motor.
The machine will continue to sew even after the
Low Bobbin Signal sounds and the indicator light flashes. You must manually stop the machine to check the
actual bobbin level.
If you use the same type of bobbins and bobbin thread a lot, you may want to place a mark along the
outside edge of the LCD screen that identifies the “full” setting for that particular bobbin thread. (To avoid
marring the surface of your machine, consider a non-permanent marking solution such as adding a piece of
masking tape on which to write or mark.)
If you change to a different bobbin thread, you’ll need to start with Step 1 to reset your “bobbin full” level.
However, once you return to your previous thread, you can simply turn the Bobbin Level Adjust Knob until
the Bobbin Level Gauge is in line with your reference mark for that thread, and start with a full bobbin once
again. You may have several different markings near your LCD screen that represent the “full bobbin level”
for a number of different thread combinations.
To make the low bobbin alert happen sooner (with more thread remaining on the bobbin), set the Low
Bobbin Gauge indicator bar slightly ABOVE the “E” (empty) line on the LCD panel as described in Step 3
above.
To make the alert happen later, set the Low Bobbin Gauge indicator bar BELOW the “E” (empty) line on the
LCD panel as described in Step 3 above.
Once you’ve set your “full level” initially for a particular bobbin style and bobbin thread type, you will not
need to change the Bobbin Level Adjust Knob. The knob is only used when changing to a different bobbin
thread or if you have turned off your machine before using an entire bobbin.
If you use a partial bobbin instead of a full bobbin, the Low Bobbin Indicator will not be accurate.
