'The normal max reverse stitch length of the Singer 237 is 2 mm. By cutting away plastics at the stitch length lever, the reverse stitch length can be increased to about 3.5 mm. The max forward stitch length is about 4.0 mm. Please \"like\" this video, if you find this information useful. You will probably find other tips for your sewing machine on my youtube channel. Leave a question and a comment as you like.'
Tags: sewing machine , repair , modification , reverse , lever , Singer 237 , stitch length , singer fashion mate 237 , back tacking
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