Pfaff 939 U Instruction Manual page 6

Contents
Contents .................................................................................Chapter - Page
12.
05.33 Pre-adjusting the needle height ................................................................................... 12 - 35
12.
05.34 Needle rise, hook-to-needle clearance and bobbin case positioning-finger .................. 12 - 36
12.
05.35 Final adjustment of the needle height ......................................................................... 12 - 37
12.
05.36 Bobbin case opener position ....................................................................................... 12 - 38
12.
05.37 Bobbin case opener motion ........................................................................................ 12 - 39
12.
05.38 Presser foot to needle plate clearance / Presser foot pressure ................................... 12 - 40
12.
05.39 Thread diverter pin ...................................................................................................... 12 - 41
12.
05.40 Limiting the knee lever stroke ..................................................................................... 12 - 42
12.
05.41 Knee lever play ............................................................................................................ 12 - 43
12.
05.42 Bobbin winder ............................................................................................................. 12 - 44
12.
05.43 Stitch condensation (only on the PFAFF 3704-2/02) .................................................... 12 - 45
12.
05.44 Switching to reverse feed (only on the PFAFF 3704-2/03) .......................................... 12 - 46
12.
05.45 Thread puller (only on the PFAFF 3704-2/02) ............................................................... 12 - 47
12.
06 Adjusting the thread trimmer -900/24 ......................................................................... 12 - 48
12.
06.01 Axial position of the control cam ................................................................................. 12 - 48
12.
06.02 Preliminary adjustment of the control cam ................................................................. 12 - 49
12.
06.03 Position of the thread catcher and cutting test ........................................................... 12 - 50
12.
06.04 Readjustment of the control cam ................................................................................ 12 - 51
12.
06.05 Needle thread tension release .................................................................................... 12 - 52
12.
07 Parameter settings ...................................................................................................... 12 - 53
12.
07.01 Selecting the user level ............................................................................................... 12 - 53
12.
07.02 Example of a parameter input ..................................................................................... 12 - 54
12.
07.03 Liste der Parameter .................................................................................................... 12 - 55
12.
08 Explanation of the error signals ................................................................................... 12 - 56
12.
09 Reset / Cold start ........................................................................................................ 12 - 57
12.
10 Internet update of the machine software .................................................................... 12 - 58
13
Wearing parts ............................................................................................................ 13 - 1
14
Circuit diagrams ........................................................................................................ 14 - 1