TM 10-3530-207-14
5-21. CLOTHING SEWING MACHINE ARM SHAFT AND VERTICAL SHAFT MAINTENANCE - continued.
NOTE
Do not overtighten screw (1) and nut (4). Allow free movement with minimal side play.
Assembly.
Install screw (1) through crank arm (2) and shuttle shaft (3) and secure with nut (4).
Installation.
NOTE
Make sure to rotate so the loop of the crankshaft (1) matches the cutout m the casting.
(1) Replace crankshaft (1).
NOTE
Bearing assembly will need to be tapped in.
(2) Install bearing assembly (2) with flat over setscrew hole.
5-47
