SINGER 431 User Manual
Page 90
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TO REMOVE THE BOBBIN CASE
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To clean hook raceway, remove bobbin case as
follows:
1. Remove throat plate (see page 18) and open
slide plate (see page 12).
2. Unlock bobbin case by lifting and pulling
holder to right as shown.
3. Remove bobbin case from machine.
4. Remove all lint, fluff, loose thread ends or any
other foreign matter which might clog the machine.
68
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