Medion LIFE SM60 Manual De Instrucciones página 236

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11.4.2. Cleaning the feeder
It is necessary to keep the fabric feeder teeth clean at all times to ensure
perfect stitching.
Remove the needle and presser foot (see Page  onwards).
Undo the screws on the needle plate to remove the needle plate from
the machine.
Use the brush to remove dust and loose threads from the feeder teeth.
Refit the needle plate.
11.4.3. Cleaning and oiling the bobbin housing
Move the needle to the highest position, otherwise the looper cannot
be removed.
Remove the bobbin case.
Turn the snap levers outwards as shown
Remove the shuttle track ring.