5-48. BUTTON SEWING MACHINE PRESSER BAR MAINTENANCE - continued.
Button arm clamp assembly must be set for four hole buttons.
(1) Slide shaft (1) through machine and collar (2). Let shaft (1) come to rest onto button arm clamp
(2) Position collar (2) so that it is just above the needle bar lever. Tighten with setscrew (3).
(3) Install presser bar spring (4), presser bar screw (5). Secure through the outside with the locknut (6)
and thumbscrew (7).