Old 10-25-2011, 07:13 AM
  #40  
catray
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Join Date: Feb 2011
Posts: 63
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Gears are the toothed wheels that make things go around. In the case of a sewing machine, the needle goes up and down. Not having enough lubricant can cause friction , which means wear and tear. Or even breakage. Not good. Always service machine or end up buying a new one.
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