Singer 14SH654 Finishing Touch Instruction Manual 19 - Page 24
DIFFERENTIAL, Gathered, Overedge, differential, adjusting, lever
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16. DIFFERENTIAL FEED • Differential feed is a system which "stretches" or "gathers" the fabric, when amount of feed of front feed dog in relation to the rear feed dog is changed. • The differential feed ratio ranges from 1 : 0.7 -- 1 : 2.0. Adjustment is made by means of the 1, 6 differential feed adjusting lever pictured below. • Use of differential feed is very effective in overedging stretch fabrics and fabrics cut on the bias. • Graduation "1.0" is differential feed adjusting lever setting for ratio 1:1. Gathered Overedge • Gathered overedge is most suited for shirring sleeves, yokes, front and back bodices, skirt hems, etc. in stretch fabrics such as knits and jersey before assembling into garment. To set the differential feed adjusting lever • Set differential feed adjusting lever knob below graduation "1.0". Setting of adjusting lever knob depends on material being sewn as well as the amount of gather therefore set knob to suit the fabric and test sew before sewing your garment. • When feed regulating dial is set at "3" or over, the amount of feed of the main feed dog will change to "3" automatically when adjusting lever knob is set to 2.0. Note: For normal overedge stitching, set differential feed adjusting lever knob to graduation "1.0". 23