Pfaff 918 U Instruction Manual page 5

Contents .................................................................................Chapter - Page
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.05.03 Parallel guiding of the needle bar ................................................................................ 12 - 5
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.05.04 Locking lever ............................................................................................................... 12 - 6
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.05.05 Zero stitch and zigzag stitch scale ............................................................................... 12 - 7
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.05.06 Centering the needle in the needle hole (crosswise to sewing direction) .................... 12 - 8
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.05.07 Zigzag stitch width ...................................................................................................... 12 - 9
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.05.08 Multi-stitch movement ................................................................................................ 12 - 10
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.05.09 Zigzag movement ....................................................................................................... 12 - 11
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.05.10 Target positioning sensor ............................................................................................ 12 - 12
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.05.11 Needle position adjustment lever ................................................................................ 12 - 13
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.05.12 Zero position of the bottom feed dog (with closed gear box) ...................................... 12 - 14
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.05.13 Zeroing the bottom feed (with open gearbox) ............................................................. 12 - 15
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.05.14 Feeding motion of the bottom feed dog ..................................................................... 12 - 16
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.05.15 Lifting motion of the bottom feed dog ........................................................................ 12 - 17
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.05.16 Drive belt in the gearbox housing ................................................................................ 12 - 18
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.05.17 Hook bearing bracket .................................................................................................. 12 - 19
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.05.18 Hook lubrication .......................................................................................................... 12 - 20
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.05.19 Pre-adjusting the needle height ................................................................................... 12 - 21
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.05.20 Needle rise, hook-to-needle clearance and bobbin case positioning-finger .................. 12 - 22
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.05.21 Final adjustment of the needle height ......................................................................... 12 - 23
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.05.22 Bobbin case opener position ....................................................................................... 12 - 24
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.05.23 Bobbin case opener motion ........................................................................................ 12 - 25
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.05.24 Bottom feed dog height .............................................................................................. 12 - 26
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.05.25 Presser foot to needle plate clearance ........................................................................ 12 - 27
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.05.26 Presser foot pressure ................................................................................................. 12 - 28
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.05.27 Thread diverter pin ...................................................................................................... 12 - 29
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.05.28 Limiting the knee lever stroke ..................................................................................... 12 - 30
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.05.29 Knee lever play ............................................................................................................ 12 - 31
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.05.30 Bobbin winder ............................................................................................................. 12 - 32
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.06 Adjusting the thread trimmer ...................................................................................... 12 - 33
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.06.01 Axial position of the control cam ................................................................................. 12 - 33
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.06.02 Preliminary adjustment of the control cam ................................................................. 12 - 34
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.06.03 Position of the thread catcher and cutting test ........................................................... 12 - 35
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.06.04 Readjustment of the control cam ................................................................................ 12 - 36
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.06.05 Needle thread tension release .................................................................................... 12 - 37
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.07 Parameter settings ...................................................................................................... 12 - 38
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.07.01 Selecting the user level ............................................................................................... 12 - 38
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.07.02 Example of a parameter input ..................................................................................... 12 - 39
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.07.03 List of parameters ....................................................................................................... 12 - 40
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.08 Reset / Cold start ........................................................................................................ 12 - 41
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.09 Explanation of the error signals ................................................................................... 12 - 42
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.10 Internet update of the machine software .................................................................... 12 - 43
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Wearing parts ............................................................................................................ 13 - 1
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Circuit diagrams ........................................................................................................ 14 - 1
Contents