Singer 4432 - Play Of Shuttle Driver Shaft

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3-14 Play of shuttle driver shaft
- Remove the needle plate.
- There are 2 gauges (a, b) for testing the
play of shuttle driver shaft. (1)
- When you turn the hand wheel counter-
clockwise, the shuttle hook (c) will move to
rotary hook plate (d), and generate the play
between the shuttle hook and the rotary
hook plate (e).
Using the gauge (a) to test the play, and the
standard is 0.3 mm to 0.5 mm.
If the play is incorrect, loosen screws (f, g)
of rotary hook plate (e) and adjust the plate
to the proper position. Finally, re-tighten the
screws. (2)
- When you turn the hand wheel clockwise,
the shuttle hook (c) will move to rotary hook
plate (e), and generate the play between the
shuttle hook and the rotary hook plate (d).
Using the gauge (b) to test the play, and the
standard is 0.6 mm to 1.0 mm.
If the play is incorrect, loosen screws (h, i)
of rotary hook plate (d) and adjust the plate
to the proper position. Finally, re-tighten the
screws. (3)
0.3 mm0.5 mm
0.6 mm1.0 mm