TM 10-3530-207-14
5-61. BUTTON SEWING MACHINE ECCENTRIC, DRIVE SHAFT, LOOPER CAM AND CRANK
MAINTENANCE-continued.
(4) Pull drive shaft (6) out through left rear of machine head. Remove pulley shaft gear (7), drive gear
(8), needle eccentric (9), and thread tension cam (10).
NOTE
Setscrew (12) is lined up with dimple on shaft.
(5) Remove setscrew (13), setscrew (14) and setscrew (12).
NOTE
It may be necessary to tighten clamp screw (11) to pry crank (15).
(6) Remove drive shaft crank (15). Remove (16), (17), and (18) as an assembly.
(7) Drive thread looper pin (14) out Remove the thread loop gear (17) and thread bushing (16) from the
thread loop shaft (18).
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