Pfaff 1425 User Manual

Contents
Contents ...............................................................................Chapter - Page
8.01.07 Fitting the reel stand ................................................................................................... 8 - 4
8.01.08 Connecting the earth cables ....................................................................................... 8 - 5
8.02 Commissioning .......................................................................................................... 8 - 6
8.03 Switching the machine on/off ..................................................................................... 8 - 6
9 Setting up ................................................................................................................. 9 - 1
9.01 Inserting the needle on the PFAFF 1425 ................................................................... 9 - 1
9.02 Inserting the needles on the PFAFF 1426.................................................................. 9 - 2
9.03 Winding the bobbin thread, regulating the winder tension ....................................... 9 - 3
9.04 Bobbin-changing/threading, and regulating the bobbin thread tension ..................... 9 - 4
9.05 Threading needle thread and regulating its tension on the PFAFF 1425 ................... 9 - 5
9.06 Threading needle threads and regulating tensions on the PFAFF 1426 ....................... 9 - 6
10 Care and maintenance........................................................................................... 10 - 1
10.01 Cleaning the hook area ............................................................................................ 10 - 1
10.02 Oiling the hook ........................................................................................................ 10 - 2
10.03 Checking/adjusting the air pressure........................................................................ 10 - 3
10.04 Cleaning the air filter of the air-filter/lubricator....................................................... 10 - 3
11 Adjustment............................................................................................................. 11 - 1
11.01 Tools, gauges and other equipment ........................................................................ 11 - 1
11.02 Notes on adjustment ............................................................................................... 11 - 1
11.03 Abbreviations............................................................................................................ 11 - 1
11.04 Adjusting the basic machine ................................................................................. 11 - 2
11.04.01 Adjusting the synchronizer........................................................................................ 11 - 2
11.04.02 Balance weight......................................................................................................... 11 - 3
11.04.03 Neutral position of the unison feed ............................................................................ 11 - 4
11.04.04 Feeding motion of the unison feed ............................................................................ 11 - 5
11.04.05 Lifting motion of the bottom feed dog ....................................................................... 11 - 6
11.04.06 Bottom feed-dog height ............................................................................................ 11 - 8
11.04.07 Needle in needle-hole centre..................................................................................... 11 - 9
11.04.08 Feeding-stroke difference.......................................................................................... 11 - 10
11.04.09 Needle height (preliminary adjustment)..................................................................... 11 - 11
11.04.10 Needle rise, hook clearance, needle height (final adjustment) and needle guard ....... 11 - 12
11.04.11 Bobbin-case opener stroke ....................................................................................... 11 - 14
11.04.12 Top feed stroke ......................................................................................................... 11 - 15
11.04.13 Top feed lifting motion .............................................................................................. 11 - 16
11.04.14 Clearance between lifting presser and needle plate .................................................. 11 - 17
11.04.15 Bobbin winder .......................................................................................................... 11 - 18
11.04.16 Thread check spring and thread regulator on the PFAFF 1425 ................................... 11 - 19
11.04.17 Thread check springs and thread regulator on the PFAFF 1426 ................................. 11 - 20
11.04.18 Speed reduction when the stroke is increased .......................................................... 11 - 21
11.04.19 Needle-thread tension release................................................................................... 11 - 22
11.04.20 Lubrication ................................................................................................................ 11 - 23
11.04.21 Re-engaging the slip-clutch ....................................................................................... 11 - 24

Pfaff 1425 Specifications

General

Brand	Pfaff
Model	1425
Category	Sewing Machine
Language	English