1. Sensor lateral direction
(1) Loosen the sensor setscrew , and adjust the lateral direction to
the direction of arrow mark.
2. Adjustment of the sensor lateral direction
(1) Loosen the setscrew of the mounting plate B, and adjust the sensor
lateral direction.
* Sensor adjustments are the same for both right and left.
3. Method of sensor check
(1) Wind a small amount of thread around the bobbin (to a degree
bobbin’s groove section is covered) and set the bobbin in the bobbin
case.
(Pass the thread through the bobbin case as making ordinary
stitches.)
(2) Turn the hand wheel of the sewing machine to assume the needle
bar stop position (upper dead point of the needle bar thread take-up
lever).
(3) Set a bobbin case in the inner hook and slowly pull out the thread
until the bobbin reflector seal taps the sensor’s optical axis section.
When the sensor is actuated at that time and the sensor indicator
light is lit in orange, this is the sign for the completion of
adjustments.
(4) To confirm whether the sensor performs detection assuredly even
when the bobbin case is moved to the right and left at that time, try to
turn the bobbin once to assume that the sensor indicator light is lit
in green only and push the bobbin case with a finger in Direction A
so that the bobbin reflector seal coincides with the sensor’s optical
axis section. Check the status of the sensor indicator light in this
manner. Turn the bobbin again and push it in Direction B further in
order to examine the status of the sensor indicator light .
– 26 –
Adjustment Procedures Results of Improper Adjustment
To Next Page
Loading...
