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B. Lower mechanism (rotary oscillating hook)
Put a little amount of machine oil on moving parts.
Remove dust with lint brush.
111
Fasten sides of oscillating hook.
Retum spare parts in place.
Remove bobbin case​


B Lower Mechanism Rotary Oscillating HookPut A Little Amount Of Machine Oil On Moving PartsRemove Dust With Lint Brush111Fasten Sides Of Oscillating HookRetum S class=