Singer 72W19 - Page 9

Fig. 3. Machine No. 72 w 19
TO THREAD THE NEEDLES
Lead the thread from the back spool through the lower hole
in the post thread guide, through the eye of the thread guide
(back), under the thread retainer guide wire, between the thread
retainer and tension discs (back), down under inside thread
controller, up through the upper hole in the take-up lever, down
through the inside guides to the inside needle, and thread the
inside needle from left to right.
From the library of: Superior Sewing Machine & Supply LLC