SINGER W7317 - Manual (Page 9)

5. TO INSERT AND REMOVE
.................... THE BOBBIN CASE
1) Raise the presser bar by lifting the presser bar lifter.
2) Turn the balance wheel toward you until needle bar
comes to its highest position,
3) Pull out slide plate to the left (Fig. 6).
Fig. 6
4) With the thumb and forefinger of the left hand, grasp the
bobbin case latch with thread coming from the top, slide
out the case (Fig. 7).
5) Allow the end of thread to hang free.
6) Push back the slide plate.
To remove the bobbin case do all the above in reverse
order.
Fig. 7
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