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Index
Contents ............................................................................... Chapter - Page
11.03 Abbreviations.............................................................................................................. 11 - 1
11.04 Adjusting the basic machine ................................................................................... 11 - 2
11.04.01 Positioning the feed dog across the direction of sewing.............................................. 11 - 2
11.04.02 Positioning the feed dog in the direction of sewing ..................................................... 11 - 3
11.04.03 Height of the bottom feed-dog .................................................................................... 11 - 4
11.04.04 Pre-adjusting the needle height ................................................................................... 11 - 5
11.04.05 Centering the needle in the needle hole ...................................................................... 11 - 6
11.04.06 Lifting motion of the bottom feed-dog ......................................................................... 11 - 7
11.04.07 Driving motion of the bottom and top feeds ................................................................ 11 - 8
11.04.08 Hook-to-needle clearance, needle rise, needle height and needle guard ...................... 11 - 9
11.04.09 Top-feed stroke ............................................................................................................ 11-11
11.04.10 Lifting motion of the top feed ....................................................................................... 11-12
11.04.11 Bobbin-case opener .....................................................................................................11-13
11.04.12 Safety clutch ............................................................................................................... 11-14
11.04.13 Needle thread tension release ...................................................................................... 11-15
11.04.14 Thread check spring ....................................................................................................11-16
11.04.15 Thread check spring on PFAFF 1246 with thread trimmer -900/56 ............................... 11-17
11.04.16 Bobbin winder ............................................................................................................. 11-18
11.04.17 Presser-foot pressure .................................................................................................. 11-19
11.05 Adjusting the thread trimmer -900/56 ........................................................................ 11-20
11.05.01 Pre-adjusting the control cam ......................................................................................11-20
11.05.02 Tripping lever ............................................................................................................... 11-21
11.05.03 Pawl ............................................................................................................................ 11-22
11.05.04 Engaging solenoid ........................................................................................................ 11-23
11.05.05 Release trip ................................................................................................................. 11-24
11.05.06 Engaging lever ............................................................................................................. 11-25
11.05.07 Linkage rod .................................................................................................................. 11-26
11.05.08 Final adjustment of the control cam............................................................................. 11-27
11.05.09 Catch........................................................................................................................... 11-28
11.05.10 Connecting rod (for PFAFF 1246 only) .......................................................................... 11-29
11.05.11 Thread-catcher height .................................................................................................. 11-30
11.05.12 Knife ............................................................................................................................ 11-31
11.05.13 Thread catcher reverse position ...................................................................................11-32
11.05.14 Bobbin-thread clamp spring .........................................................................................11-34
11.05.15 Tension release bar ..................................................................................................... 11-36
11.05.16 Positioner .................................................................................................................... 11-38
12 Wearing parts ........................................................................................................... 12 - 1