4-49. BUTTON SEWING MACHINE MAINTENANCE ADJUSTMENT PROCEDURES - continued.
To regulate the height of lift of the button clamp
The height to which the button clamp is raised is controlled by the position of the button clamp
lifting rod arm stop plate (1).
To adjust, loosen the two screws (2) and move the stop (1) downward to raise the button clamp
higher, or move the stop (1) upward to lessen the height of the button clamp lift. When the
desired adjustment is obtained, securely tighten the two screws (2).
To adjust the automatic tension.
When the automatic tension (3) is closed (without thread being between the
discs) there should
be about 1/64 inch between the upper end of the automatic tension rod (4) and the tension
release disc (5).
To adjust, loosen the nuts (6) and turn the rod (4) up or down until the proper end play is
obtained, then securely tighten the nuts (6).