It has most likely seized due to lack of oiling. Apply a couple drops of liquid Tri-Flow Synthetic Lube to the feed dog mechanism and then direct hot air from a handheld hair dryer into the internal mechanism. Alternate lube & air--may take several times over several days. Eventually, it may loosen. Do not force the feed dog knob, but wiggling it may loosen things.
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It has most likely seized due to lack of oiling. Apply a couple drops of liquid Tri-Flow Synthetic Lube to the feed dog mechanism and then direct hot air from a handheld hair dryer into the internal mechanism. Alternate lube & air--may take several times over several days. Eventually, it may loosen. Do not force the feed dog knob, but wiggling it may loosen things.
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