Index
Contents ..................................................................................Page
13 Adjustment ......................................................................................................................... 32
13.01 Notes on adjustment ........................................................................................................... 32
13.02 Tools, gauges and other accessories for adjusting ............................................................. 32
13.03 Abbreviations ....................................................................................................................... 32
13.04 Explanation of the symbols .................................................................................................. 32
13.05 Adjusting the basic machine ................................................................................................ 33
13.05.01 Positioning the feed dog across the direction of sewing ..................................................... 33
13.05.02 Positioning the feed dog in the direction of sewing ............................................................ 34
13.05.03 Height of the bottom feed-dog ........................................................................................... 35
13.05.04 Pre-adjusting the needle height ........................................................................................... 36
13.05.05 Centering the needle in the needle hole .............................................................................. 37
13.05.06 Lifting motion of the bottom feed-dog . ............................................................................... 38
13.05.07 Driving motion of the bottom and top feeds ........................................................................ 39
13.05.08 Hook-to-needle clearance, needle rise, needle height and needle guard ........................... 40
13.05.09 Top-feed stroke .................................................................................................................... 42
13.05.10 Lifting motion of the top feed ............................................................................................. 43
13.05.11 Bobbin-case opener ............................................................................................................ 44
13.05.12 Safety clutch ........................................................................................................................ 45
13.05.13 Needle thread tension release ............................................................................................. 46
13.05.14 Thread check spring ............................................................................................................. 47
13.05.15 Bobbin winder ...................................................................................................................... 48
13.05.16 Presser-foot pressure .............................................................................................................. 49
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