Pfaff 3827-4/33 - Page 5

Contents
Contents ................................................................................. Chapter - Page
12.05.12 Feeding motion of the top feed dog ............................................................................ 12 - 15
12.05.13 Front linkage rod to top feed drive .............................................................................. 12 - 16
12.05.14 Top feed stroke ........................................................................................................... 12 - 17
12.05.15 Lifting motion of the top feed dog............................................................................... 12 - 18
12.05.16 Position of the top feed dog ........................................................................................ 12 - 19
12.05.17 Stitch length adjustment ............................................................................................. 12 - 20
12.05.18 Synchronizing the top feed dog ................................................................................... 12 - 21
12.05.19 Eccentric hook shaft bearing and hook-to-needle clearance ........................................ 12 - 22
12.05.20 Needle bar rise, readjustment of the needle height and bobbin case position stop .... 12 - 23
12.05.21 Bobbin opener height .................................................................................................. 12 - 24
12.05.22 Adjustment of the bobbin opener................................................................................ 12 - 25
12.05.23 Bobbin case opener .................................................................................................... 12 - 26
12.05.24 Needle thread tension release .................................................................................... 12 - 27
12.05.25 Thread check spring .................................................................................................... 12 - 28
12.05.26 Bobbin winder ............................................................................................................. 12 - 29
12.05.27 Position of the top feed dog in relation to the sewing foot.......................................... 12 - 30
12.05.28 Top feed dog and sewing foot pressure...................................................................... 12 - 31
12.05.29 Limiting the stitch length............................................................................................. 12 - 32
12.06 Adjusting the thread trimmer -900/99 ......................................................................... 12 - 33
12.06.01 Lateral adjustment of the thread catcher .................................................................... 12 - 33
12.06.02 Front reversal point of the thread catcher ................................................................... 12 - 34
12.06.03 Knife to needle clearance ............................................................................................ 12 - 35
12.06.04 Manual trimming control ............................................................................................. 12 - 36
12.06.05 Needle thread tension release .................................................................................... 12 - 37
12.06.06 Mounting and dismounting the control unit................................................................. 12 - 38
12.07 Parameter settings...................................................................................................... 12 - 39
12.07.01 Example of a parameter input ..................................................................................... 12 - 39
12.07.02 Selecting the user level ............................................................................................... 12 - 40
12.07.03 List of parameters ....................................................................................................... 12-41
12.08 Explanation of the error signals ................................................................................... 12 - 45
12.09 Hardware-test ............................................................................................................. 12 - 46
12.09.01 Carrying out the hardware test ................................................................................... 12 - 46
12.09.02 Test block 1 - inputs .................................................................................................... 12-46
12.09.03 Test block 2 - outputs.................................................................................................. 12 -47
12.09.04 Test block 3 - speed control unit ................................................................................. 12 - 47
12.09.05 Test block 4 - actual value transmitters ....................................................................... 12 - 47
12.09.06 Test block 5 - light barrier ............................................................................................ 12 -48
12.09.07 Test block 6 - thread monitor (only on subclass -926/06) ............................................ 12 - 48
12.09.08 Test block 7 - data transfer.......................................................................................... 12 - 48
12.10 Connection plan for X5 plug ........................................................................................ 12 - 49
14 Wearing parts ............................................................................................................ 14 - 1
15 Circuit diagrams ........................................................................................................ 15 - 1