TM 10-3530-207-14
5-56. BUTTON SEWING MACHINE VIBRATING LEVER MAINTENANCE continued.
NOTE
Tighten the connecting stud nut (17) and the connecting stud locknut (18) so that the lower
needle stud (15) moves freely with minimum end play.
(5) Install lower needle stud (15). Secure with connecting stud washer (16), connecting stud nut (17),
connecting stud locknut (18).
(6) Install the needle bar lever (2) into the machine head. Secure with needle bar slide (19) and lever
hinge screw (20).
(7) Install setscrew (21)
(8) Install clip (22) and knob (23).
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