In time, lint and dust that are allowed to accumulate in a sewing machine can become soaked with oil and/or lubricant and interfere with the operation of the machine. When this gummy grime is removed, the machine will work more freely, and adjustment may not be necessary.
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Explanation:
In time, lint and dust that are allowed to accumulate in a sewing machine can become soaked with oil and/or lubricant and interfere with the operation of the machine. When this gummy grime is removed, the machine will work more freely, and adjustment may not be necessary.