Table Of Contents - Pfaff 487 Adjustment Manual

Contents ..................................................................................Page
1 Adjustment
1
.01 Notes on adjustment ............................................................................................................. 4
1
.02 Tools, gauges and other accessories for adjusting ............................................................... 4
1
.03 Abbreviations ......................................................................................................................... 4
1
.04 Explanation of the symbols .................................................................................................... 4
1
.05 Checking and adjusting aid .................................................................................................... 5
1
.06 Adjusting the basic machine .................................................................................................. 6
1
.06.01 Balancing weight .................................................................................................................... 6
1
.06.02 Needle in needle-hole centre ................................................................................................. 7
1
.06.03 Neutral position of drop feed ( Adjustment with the gearcase closed ................................... 8
1
.06.04 Adjustment with the gearcase opened .................................................................................. 9
1
.06.05 Actuating lever under the reverse-feed control .................................................................... 10
1
.06.06 Feeding motion of drop feed ................................................................................................ 11
1
.06.07 Lifting motion of drop feed .................................................................................................. 12
1
.06.08 Height of drop feed dog ....................................................................................................... 13
1
.06.09 Clearance between presser foot and needle plate ............................................................. 14
1
.06.10 Top feed actuating link ......................................................................................................... 15
1
.06.11 Neutral position of top feed ................................................................................................. 16
1
.06.12 Feeding motion of the top feed dog .................................................................................... 18
1
.06.13 Vibrating presser clearance .................................................................................................. 19
1
.06.14 Top feed lifting motion ......................................................................................................... 20
1
.06.15 Position of lifting presser ..................................................................................................... 21
1
.06.16 Synchronizing the top feed .................................................................................................. 22
1
.06.17 Stitch length alignment ........................................................................................................ 23
1
.06.18 Eccentric hook shaft bearing and hook-to-needle clearance ................................................ 24
1
.06.19 Final adjustment of needle rise, needle height, and bobbin case position fi nger ..................25
1
.06.20 Bobbin case opener height .................................................................................................. 26
1
.06.21 Adjustment of the bobbin opener ........................................................................................ 27
1
.06.22 Bobbin case opener motion ................................................................................................. 28
1
.06.23 Needle thread tension release ............................................................................................. 29
1
.06.24 Thread check spring and thread regulator ............................................................................ 30
1
.06.25 Bobbin winder ...................................................................................................................... 31
1
.06.26 Knee lever resting position .................................................................................................. 32
1
.06.27 Knee lever play ..................................................................................................................... 33
1
.06.28 Knee lever stroke limitation ................................................................................................. 34
1
.06.29 Position of vibrating presser in relation to lifting presser ..................................................... 35
1
.06.30 Pressure of the vibrating- and lifting pressers ...................................................................... 36
1
.06.31 Stitch length limitation ......................................................................................................... 37
1
.07 Parameter settings (only on machines with EcoDrive and control unit P40 ED) .................. 38
1
.07 .01 Parameter list ....................................................................................................................... 38
2
Circuit diagrams ................................................................................................................ 39
......................................................................................................................... 4
Index