Pfaff Powerline 2545, Adjustment Manual

Index

Contents ................................................................................ Page

1

 Adjustment 

........................................................................................................................... 4

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 

Adjusting the basic machine .................................................................................................. 5

1

.05.01 

Basic position of the balance wheel (adjustment aid) ............................................................ 5

1

.05.02 Balance 

weight 

...................................................................................................................... 6

1

.05.03 

Zero position of the unison feed  ........................................................................................... 7

1

.05.04 

Feeding motion of the unison feed  ....................................................................................... 8

1

.05.05 

Lifting motion of the bottom feed dog ................................................................................... 9

1

.05.06 

Height of the bottom feed dog ............................................................................................ 11

1

.05.07 

Feeding stroke difference .................................................................................................... 12

1

.05.08 

Preliminary adjustment of the needle height ....................................................................... 13

1

.05.09 

Needle rise, hook clearance, needle height and needle guard ............................................ 14

1

.05.10 

Top feed stroke .................................................................................................................... 16

1

.05.11 

Top-feed lifting motion ......................................................................................................... 17

1

.05.12 

Adjusting the potentiometer for speed reduction ................................................................ 18

1

.05.12.01 

On machines with drive P74 ED-L

 ........................................................................................ 19

1

.05.12.02 

On machines with drive

PF 321

 ........................................................................................... 19

1

.05.13 

Bobbin case opener stroke  ................................................................................................. 19

1

.05.14 

Adjusting the shortened trim stitch...................................................................................... 20

1

.05.15 Bobbin 

winder 

...................................................................................................................... 21

1

.05.16 

Thread check spring and thread regulator ............................................................................ 22

1

.05.17 

Sewing foot pressure ........................................................................................................... 23

1

.05.18 Lubrication 

........................................................................................................................... 24

1

.05.19 

Limiting the stitch length ..................................................................................................... 25

1

.05.20 Speed 

reduction 

................................................................................................................... 26

1

.05.21 

Re-engaging the slip-clutch .................................................................................................. 27

1

.06 

Adjusting the thread trimmer -900/81 .................................................................................. 28

1

.06.01 

Resting position of roller lever/radial position of control cam .............................................. 28

1

.06.02 

Position and height of the thread catcher ............................................................................ 29

1

.06.03 Knife 

pressure 

...................................................................................................................... 30

1

.06.04 

Bobbin thread clamp spring ................................................................................................. 31

1

.06.05 

Manual cutting test .............................................................................................................. 32